diff --git a/src/core/backbone_router/bbr_leader.cpp b/src/core/backbone_router/bbr_leader.cpp
index 4b64fffe3..39efb7fe2 100644
--- a/src/core/backbone_router/bbr_leader.cpp
+++ b/src/core/backbone_router/bbr_leader.cpp
@@ -92,8 +92,8 @@ void Leader::LogBackboneRouterPrimary(State aState, const BackboneRouterConfig &
 
     if (aState != kStateRemoved && aState != kStateNone)
     {
-        LogInfo("Rloc16: 0x%4X, seqno: %d, delay: %d, timeout %d", aConfig.mServer16, aConfig.mSequenceNumber,
-                aConfig.mReregistrationDelay, aConfig.mMlrTimeout);
+        LogInfo("Rloc16:0x%4x, seqno:%u, delay:%u, timeout:%lu", aConfig.mServer16, aConfig.mSequenceNumber,
+                aConfig.mReregistrationDelay, ToUlong(aConfig.mMlrTimeout));
     }
 }
 
@@ -205,7 +205,8 @@ void Leader::UpdateBackboneRouterPrimary(void)
 
         if (config.mMlrTimeout != origMlrTimeout)
         {
-            LogNote("Leader MLR Timeout is normalized from %u to %u", origMlrTimeout, config.mMlrTimeout);
+            LogNote("Leader MLR Timeout is normalized from %lu to %lu", ToUlong(origMlrTimeout),
+                    ToUlong(config.mMlrTimeout));
         }
     }
 
diff --git a/src/core/backbone_router/bbr_local.cpp b/src/core/backbone_router/bbr_local.cpp
index 4c7945a44..421500167 100644
--- a/src/core/backbone_router/bbr_local.cpp
+++ b/src/core/backbone_router/bbr_local.cpp
@@ -454,8 +454,8 @@ void Local::LogDomainPrefix(const char *aAction, Error aError)
 
 void Local::LogBackboneRouterService(const char *aAction, Error aError)
 {
-    LogInfo("%s BBR Service: seqno (%d), delay (%ds), timeout (%ds), %s", aAction, mSequenceNumber,
-            mReregistrationDelay, mMlrTimeout, ErrorToString(aError));
+    LogInfo("%s BBR Service: seqno (%u), delay (%us), timeout (%lus), %s", aAction, mSequenceNumber,
+            mReregistrationDelay, ToUlong(mMlrTimeout), ErrorToString(aError));
 }
 #endif
 
diff --git a/src/core/backbone_router/bbr_manager.cpp b/src/core/backbone_router/bbr_manager.cpp
index de82ce41b..bc712a4b8 100644
--- a/src/core/backbone_router/bbr_manager.cpp
+++ b/src/core/backbone_router/bbr_manager.cpp
@@ -213,7 +213,7 @@ void Manager::HandleMulticastListenerRegistration(const Coap::Message &aMessage,
 
             if (timeout != origTimeout)
             {
-                LogNote("MLR.req: MLR timeout is normalized from %u to %u", origTimeout, timeout);
+                LogNote("MLR.req: MLR timeout is normalized from %lu to %lu", ToUlong(origTimeout), ToUlong(timeout));
             }
         }
     }
@@ -728,8 +728,8 @@ void Manager::HandleExtendedBackboneAnswer(const Ip6::Address &            aDua,
     dest.SetToRoutingLocator(Get<Mle::MleRouter>().GetMeshLocalPrefix(), aSrcRloc16);
     Get<AddressResolver>().SendAddressQueryResponse(aDua, aMeshLocalIid, &aTimeSinceLastTransaction, dest);
 
-    LogInfo("HandleExtendedBackboneAnswer: target=%s, mliid=%s, LTT=%lds, rloc16=%04x", aDua.ToString().AsCString(),
-            aMeshLocalIid.ToString().AsCString(), aTimeSinceLastTransaction, aSrcRloc16);
+    LogInfo("HandleExtendedBackboneAnswer: target=%s, mliid=%s, LTT=%lus, rloc16=%04x", aDua.ToString().AsCString(),
+            aMeshLocalIid.ToString().AsCString(), ToUlong(aTimeSinceLastTransaction), aSrcRloc16);
 }
 
 void Manager::HandleProactiveBackboneNotification(const Ip6::Address &            aDua,
@@ -765,8 +765,8 @@ void Manager::HandleProactiveBackboneNotification(const Ip6::Address &
     }
 
 exit:
-    LogInfo("HandleProactiveBackboneNotification: %s, target=%s, mliid=%s, LTT=%lds", ErrorToString(error),
-            aDua.ToString().AsCString(), aMeshLocalIid.ToString().AsCString(), aTimeSinceLastTransaction);
+    LogInfo("HandleProactiveBackboneNotification: %s, target=%s, mliid=%s, LTT=%lus", ErrorToString(error),
+            aDua.ToString().AsCString(), aMeshLocalIid.ToString().AsCString(), ToUlong(aTimeSinceLastTransaction));
 }
 #endif // OPENTHREAD_CONFIG_BACKBONE_ROUTER_DUA_NDPROXYING_ENABLE
 
diff --git a/src/core/backbone_router/multicast_listeners_table.cpp b/src/core/backbone_router/multicast_listeners_table.cpp
index 35a497263..d96aed8e6 100644
--- a/src/core/backbone_router/multicast_listeners_table.cpp
+++ b/src/core/backbone_router/multicast_listeners_table.cpp
@@ -157,7 +157,7 @@ void MulticastListenersTable::LogMulticastListenersTable(const char *        aAc
     OT_UNUSED_VARIABLE(aExpireTime);
     OT_UNUSED_VARIABLE(aError);
 
-    LogDebg("%s %s expire %u: %s", aAction, aAddress.ToString().AsCString(), aExpireTime.GetValue(),
+    LogDebg("%s %s expire %lu: %s", aAction, aAddress.ToString().AsCString(), ToUlong(aExpireTime.GetValue()),
             ErrorToString(aError));
 }
 
diff --git a/src/core/backbone_router/ndproxy_table.cpp b/src/core/backbone_router/ndproxy_table.cpp
index 8a1b49f00..c0410338e 100644
--- a/src/core/backbone_router/ndproxy_table.cpp
+++ b/src/core/backbone_router/ndproxy_table.cpp
@@ -188,8 +188,8 @@ Error NdProxyTable::Register(const Ip6::InterfaceIdentifier &aAddressIid,
     mIsAnyDadInProcess = true;
 
 exit:
-    LogInfo("NdProxyTable::Register %s MLIID %s RLOC16 %04x LTT %u => %s", aAddressIid.ToString().AsCString(),
-            aMeshLocalIid.ToString().AsCString(), aRloc16, timeSinceLastTransaction, ErrorToString(error));
+    LogInfo("NdProxyTable::Register %s MLIID %s RLOC16 %04x LTT %lu => %s", aAddressIid.ToString().AsCString(),
+            aMeshLocalIid.ToString().AsCString(), aRloc16, ToUlong(timeSinceLastTransaction), ErrorToString(error));
     return error;
 }
 
diff --git a/src/core/border_router/routing_manager.cpp b/src/core/border_router/routing_manager.cpp
index 2babb4f45..5c12bea57 100644
--- a/src/core/border_router/routing_manager.cpp
+++ b/src/core/border_router/routing_manager.cpp
@@ -598,7 +598,7 @@ void RoutingManager::ScheduleRoutingPolicyEvaluation(ScheduleMode aMode)
     // Ensure we wait a min delay after last RA tx
     evaluateTime = Max(now + delay, mRaInfo.mLastTxTime + kMinDelayBetweenRtrAdvs);
 
-    LogInfo("Start evaluating routing policy, scheduled in %u milliseconds", evaluateTime - now);
+    LogInfo("Start evaluating routing policy, scheduled in %lu milliseconds", ToUlong(evaluateTime - now));
 
     mRoutingPolicyTimer.FireAtIfEarlier(evaluateTime);
 }
@@ -739,8 +739,8 @@ void RoutingManager::SendRouterAdvertisement(RouterAdvTxMode aRaTxMode)
         for (const OnMeshPrefix &prefix : mAdvertisedPrefixes)
         {
             SuccessOrAssert(raMsg.AppendRouteInfoOption(prefix, kDefaultOmrPrefixLifetime, mRouteInfoOptionPreference));
-            LogInfo("RouterAdvert: Added RIO for %s (lifetime=%u)", prefix.ToString().AsCString(),
-                    kDefaultOmrPrefixLifetime);
+            LogInfo("RouterAdvert: Added RIO for %s (lifetime=%lu)", prefix.ToString().AsCString(),
+                    ToUlong(kDefaultOmrPrefixLifetime));
         }
     }
 
@@ -1145,7 +1145,7 @@ void RoutingManager::ResetDiscoveredPrefixStaleTimer(void)
     else
     {
         mDiscoveredPrefixStaleTimer.FireAt(nextStaleTime);
-        LogDebg("Prefix stale timer scheduled in %lu ms", nextStaleTime - now);
+        LogDebg("Prefix stale timer scheduled in %lu ms", ToUlong(nextStaleTime - now));
     }
 }
 
@@ -1264,7 +1264,7 @@ void RoutingManager::DiscoveredPrefixTable::ProcessPrefixInfoOption(const Ip6::N
 
     VerifyOrExit(Get<RoutingManager>().ShouldProcessPrefixInfoOption(aPio, prefix));
 
-    LogInfo("Processing PIO (%s, %u seconds)", prefix.ToString().AsCString(), aPio.GetValidLifetime());
+    LogInfo("Processing PIO (%s, %lu seconds)", prefix.ToString().AsCString(), ToUlong(aPio.GetValidLifetime()));
 
     entry = aRouter.mEntries.FindMatching(Entry::Matcher(prefix, Entry::kTypeOnLink));
 
@@ -1311,7 +1311,7 @@ void RoutingManager::DiscoveredPrefixTable::ProcessRouteInfoOption(const Ip6::Nd
 
     VerifyOrExit(Get<RoutingManager>().ShouldProcessRouteInfoOption(aRio, prefix));
 
-    LogInfo("Processing RIO (%s, %u seconds)", prefix.ToString().AsCString(), aRio.GetRouteLifetime());
+    LogInfo("Processing RIO (%s, %lu seconds)", prefix.ToString().AsCString(), ToUlong(aRio.GetRouteLifetime()));
 
     entry = aRouter.mEntries.FindMatching(Entry::Matcher(prefix, Entry::kTypeRoute));
 
@@ -1761,7 +1761,7 @@ void RoutingManager::DiscoveredPrefixTable::SendNeighborSolicitToRouter(const Ro
 
     IgnoreError(Get<RoutingManager>().mInfraIf.Send(packet, aRouter.mAddress));
 
-    LogInfo("Sent Neighbor Solicitation to %s - attempt:%d/%d", aRouter.mAddress.ToString().AsCString(),
+    LogInfo("Sent Neighbor Solicitation to %s - attempt:%u/%u", aRouter.mAddress.ToString().AsCString(),
             aRouter.mNsProbeCount, Router::kMaxNsProbes);
 
 exit:
@@ -2403,8 +2403,8 @@ void RoutingManager::OnLinkPrefixManager::AppendCurPrefix(Ip6::Nd::RouterAdvertM
 
     SuccessOrAssert(aRaMessage.AppendPrefixInfoOption(mLocalPrefix, validLifetime, preferredLifetime));
 
-    LogInfo("RouterAdvert: Added PIO for %s (valid=%u, preferred=%u)", mLocalPrefix.ToString().AsCString(),
-            validLifetime, preferredLifetime);
+    LogInfo("RouterAdvert: Added PIO for %s (valid=%lu, preferred=%lu)", mLocalPrefix.ToString().AsCString(),
+            ToUlong(validLifetime), ToUlong(preferredLifetime));
 
 exit:
     return;
@@ -2425,8 +2425,8 @@ void RoutingManager::OnLinkPrefixManager::AppendOldPrefixes(Ip6::Nd::RouterAdver
         validLifetime = TimeMilli::MsecToSec(oldPrefix.mExpireTime - now);
         SuccessOrAssert(aRaMessage.AppendPrefixInfoOption(oldPrefix.mPrefix, validLifetime, 0));
 
-        LogInfo("RouterAdvert: Added PIO for %s (valid=%u, preferred=0)", oldPrefix.mPrefix.ToString().AsCString(),
-                validLifetime);
+        LogInfo("RouterAdvert: Added PIO for %s (valid=%lu, preferred=0)", oldPrefix.mPrefix.ToString().AsCString(),
+                ToUlong(validLifetime));
     }
 }
 
@@ -2801,7 +2801,7 @@ void RoutingManager::Nat64PrefixManager::HandleTimer(void)
     Discover();
 
     mTimer.Start(TimeMilli::SecToMsec(kDefaultNat64PrefixLifetime));
-    LogInfo("NAT64 prefix timer scheduled in %u seconds", kDefaultNat64PrefixLifetime);
+    LogInfo("NAT64 prefix timer scheduled in %lu seconds", ToUlong(kDefaultNat64PrefixLifetime));
 }
 
 void RoutingManager::Nat64PrefixManager::Discover(void)
@@ -2862,7 +2862,7 @@ void RoutingManager::RsSender::Start(void)
     VerifyOrExit(!IsInProgress());
 
     delay = Random::NonCrypto::GetUint32InRange(0, kMaxStartDelay);
-    LogInfo("Scheduled Router Solicitation in %u milliseconds", delay);
+    LogInfo("Scheduled Router Solicitation in %lu milliseconds", ToUlong(delay));
 
     mTxCount   = 0;
     mStartTime = TimerMilli::GetNow();
@@ -2905,12 +2905,12 @@ void RoutingManager::RsSender::HandleTimer(void)
     if (error == kErrorNone)
     {
         mTxCount++;
-        LogInfo("Successfully sent RS %d/%d", mTxCount, kMaxTxCount);
+        LogInfo("Successfully sent RS %u/%u", mTxCount, kMaxTxCount);
         delay = (mTxCount == kMaxTxCount) ? kWaitOnLastAttempt : kTxInterval;
     }
     else
     {
-        LogCrit("Failed to send RS %d, error:%s", mTxCount + 1, ErrorToString(error));
+        LogCrit("Failed to send RS %u, error:%s", mTxCount + 1, ErrorToString(error));
 
         // Note that `mTxCount` is intentionally not incremented
         // if the tx fails.
diff --git a/src/core/common/log.hpp b/src/core/common/log.hpp
index 0870e0685..90fec6c2f 100644
--- a/src/core/common/log.hpp
+++ b/src/core/common/log.hpp
@@ -107,7 +107,7 @@ constexpr uint8_t kMaxLogModuleNameLength = 14; ///< Maximum module name length
  * @param[in]  ...   Arguments for the format specification.
  *
  */
-#define LogCrit(...) Logger::Log<kLogLevelCrit, kLogModuleName>(__VA_ARGS__)
+#define LogCrit(...) Logger::LogAtLevel<kLogLevelCrit>(kLogModuleName, __VA_ARGS__)
 #else
 #define LogCrit(...)
 #endif
@@ -119,7 +119,7 @@ constexpr uint8_t kMaxLogModuleNameLength = 14; ///< Maximum module name length
  * @param[in]  ...   Arguments for the format specification.
  *
  */
-#define LogWarn(...) Logger::Log<kLogLevelWarn, kLogModuleName>(__VA_ARGS__)
+#define LogWarn(...) Logger::LogAtLevel<kLogLevelWarn>(kLogModuleName, __VA_ARGS__)
 #else
 #define LogWarn(...)
 #endif
@@ -131,7 +131,7 @@ constexpr uint8_t kMaxLogModuleNameLength = 14; ///< Maximum module name length
  * @param[in]  ...   Arguments for the format specification.
  *
  */
-#define LogNote(...) Logger::Log<kLogLevelNote, kLogModuleName>(__VA_ARGS__)
+#define LogNote(...) Logger::LogAtLevel<kLogLevelNote>(kLogModuleName, __VA_ARGS__)
 #else
 #define LogNote(...)
 #endif
@@ -143,7 +143,7 @@ constexpr uint8_t kMaxLogModuleNameLength = 14; ///< Maximum module name length
  * @param[in]  ...   Arguments for the format specification.
  *
  */
-#define LogInfo(...) Logger::Log<kLogLevelInfo, kLogModuleName>(__VA_ARGS__)
+#define LogInfo(...) Logger::LogAtLevel<kLogLevelInfo>(kLogModuleName, __VA_ARGS__)
 #else
 #define LogInfo(...)
 #endif
@@ -155,7 +155,7 @@ constexpr uint8_t kMaxLogModuleNameLength = 14; ///< Maximum module name length
  * @param[in]  ...   Arguments for the format specification.
  *
  */
-#define LogDebg(...) Logger::Log<kLogLevelDebg, kLogModuleName>(__VA_ARGS__)
+#define LogDebg(...) Logger::LogAtLevel<kLogLevelDebg>(kLogModuleName, __VA_ARGS__)
 #else
 #define LogDebg(...)
 #endif
@@ -305,15 +305,13 @@ class Logger
     // and instead the logging macros should be used.
 
 public:
-    template <LogLevel kLogLevel, const char *kModuleName, typename... Args>
-    static void Log(const char *aFormat, Args... aArgs)
-    {
-        LogAtLevel<kLogLevel>(kModuleName, aFormat, aArgs...);
-    }
+    static void LogInModule(const char *aModuleName, LogLevel aLogLevel, const char *aFormat, ...)
+        OT_TOOL_PRINTF_STYLE_FORMAT_ARG_CHECK(3, 4);
 
-    static void LogInModule(const char *aModuleName, LogLevel aLogLevel, const char *aFormat, ...);
+    template <LogLevel kLogLevel>
+    static void LogAtLevel(const char *aModuleName, const char *aFormat, ...)
+        OT_TOOL_PRINTF_STYLE_FORMAT_ARG_CHECK(2, 3);
 
-    template <LogLevel kLogLevel> static void LogAtLevel(const char *aModuleName, const char *aFormat, ...);
     static void LogVarArgs(const char *aModuleName, LogLevel aLogLevel, const char *aFormat, va_list aArgs);
 
 #if OPENTHREAD_CONFIG_LOG_PKT_DUMP
diff --git a/src/core/common/notifier.cpp b/src/core/common/notifier.cpp
index a2c18bda0..e01707e2f 100644
--- a/src/core/common/notifier.cpp
+++ b/src/core/common/notifier.cpp
@@ -228,7 +228,7 @@ void Notifier::LogEvents(Events aEvents) const
         {
             if (string.GetLength() >= kFlagsStringLineLimit)
             {
-                LogInfo("StateChanged (0x%08x) %s%s ...", aEvents.GetAsFlags(), didLog ? "... " : "[",
+                LogInfo("StateChanged (0x%08lx) %s%s ...", ToUlong(aEvents.GetAsFlags()), didLog ? "... " : "[",
                         string.AsCString());
                 string.Clear();
                 didLog   = true;
@@ -243,7 +243,7 @@ void Notifier::LogEvents(Events aEvents) const
     }
 
 exit:
-    LogInfo("StateChanged (0x%08x) %s%s]", aEvents.GetAsFlags(), didLog ? "... " : "[", string.AsCString());
+    LogInfo("StateChanged (0x%08lx) %s%s]", ToUlong(aEvents.GetAsFlags()), didLog ? "... " : "[", string.AsCString());
 }
 
 const char *Notifier::EventToString(Event aEvent) const
diff --git a/src/core/common/settings.cpp b/src/core/common/settings.cpp
index eae22ef92..26d9bbdfc 100644
--- a/src/core/common/settings.cpp
+++ b/src/core/common/settings.cpp
@@ -53,26 +53,26 @@ RegisterLogModule("Settings");
 
 void SettingsBase::NetworkInfo::Log(Action aAction) const
 {
-    LogInfo("%s NetworkInfo {rloc:0x%04x, extaddr:%s, role:%s, mode:0x%02x, version:%hu, keyseq:0x%x, ...",
+    LogInfo("%s NetworkInfo {rloc:0x%04x, extaddr:%s, role:%s, mode:0x%02x, version:%u, keyseq:0x%lx, ...",
             ActionToString(aAction), GetRloc16(), GetExtAddress().ToString().AsCString(),
             Mle::RoleToString(static_cast<Mle::DeviceRole>(GetRole())), GetDeviceMode(), GetVersion(),
-            GetKeySequence());
+            ToUlong(GetKeySequence()));
 
-    LogInfo("... pid:0x%x, mlecntr:0x%x, maccntr:0x%x, mliid:%s}", GetPreviousPartitionId(), GetMleFrameCounter(),
-            GetMacFrameCounter(), GetMeshLocalIid().ToString().AsCString());
+    LogInfo("... pid:0x%lx, mlecntr:0x%lx, maccntr:0x%lx, mliid:%s}", ToUlong(GetPreviousPartitionId()),
+            ToUlong(GetMleFrameCounter()), ToUlong(GetMacFrameCounter()), GetMeshLocalIid().ToString().AsCString());
 }
 
 void SettingsBase::ParentInfo::Log(Action aAction) const
 {
-    LogInfo("%s ParentInfo {extaddr:%s, version:%hu}", ActionToString(aAction), GetExtAddress().ToString().AsCString(),
+    LogInfo("%s ParentInfo {extaddr:%s, version:%u}", ActionToString(aAction), GetExtAddress().ToString().AsCString(),
             GetVersion());
 }
 
 #if OPENTHREAD_FTD
 void SettingsBase::ChildInfo::Log(Action aAction) const
 {
-    LogInfo("%s ChildInfo {rloc:0x%04x, extaddr:%s, timeout:%u, mode:0x%02x, version:%hu}", ActionToString(aAction),
-            GetRloc16(), GetExtAddress().ToString().AsCString(), GetTimeout(), GetMode(), GetVersion());
+    LogInfo("%s ChildInfo {rloc:0x%04x, extaddr:%s, timeout:%lu, mode:0x%02x, version:%u}", ActionToString(aAction),
+            GetRloc16(), GetExtAddress().ToString().AsCString(), ToUlong(GetTimeout()), GetMode(), GetVersion());
 }
 #endif
 
diff --git a/src/core/mac/mac.cpp b/src/core/mac/mac.cpp
index a246c75c4..3bd6f9c2d 100644
--- a/src/core/mac/mac.cpp
+++ b/src/core/mac/mac.cpp
@@ -571,7 +571,7 @@ void Mac::UpdateIdleMode(void)
     else
     {
         mLinks.Receive(mRadioChannel);
-        LogDebg("Idle mode: Radio receiving on channel %d", mRadioChannel);
+        LogDebg("Idle mode: Radio receiving on channel %u", mRadioChannel);
     }
 
 exit:
@@ -1506,7 +1506,7 @@ Error Mac::ProcessReceiveSecurity(RxFrame &aFrame, const Address &aSrcAddr, Neig
     VerifyOrExit(securityLevel == Frame::kSecEncMic32);
 
     IgnoreError(aFrame.GetFrameCounter(frameCounter));
-    LogDebg("Rx security - frame counter %u", frameCounter);
+    LogDebg("Rx security - frame counter %lu", ToUlong(frameCounter));
 
     IgnoreError(aFrame.GetKeyIdMode(keyIdMode));
 
@@ -1652,7 +1652,7 @@ Error Mac::ProcessEnhAckSecurity(TxFrame &aTxFrame, RxFrame &aAckFrame)
     VerifyOrExit(txKeyId == ackKeyId);
 
     IgnoreError(aAckFrame.GetFrameCounter(frameCounter));
-    LogDebg("Rx security - Ack frame counter %u", frameCounter);
+    LogDebg("Rx security - Ack frame counter %lu", ToUlong(frameCounter));
 
     IgnoreError(aAckFrame.GetSrcAddr(srcAddr));
 
@@ -2209,7 +2209,7 @@ void Mac::LogFrameTxFailure(const TxFrame &aFrame, Error aError, uint8_t aRetryC
         uint8_t maxAttempts = aFrame.GetMaxFrameRetries() + 1;
         uint8_t curAttempt  = aWillRetx ? (aRetryCount + 1) : maxAttempts;
 
-        LogInfo("Frame tx attempt %d/%d failed, error:%s, %s", curAttempt, maxAttempts, ErrorToString(aError),
+        LogInfo("Frame tx attempt %u/%u failed, error:%s, %s", curAttempt, maxAttempts, ErrorToString(aError),
                 aFrame.ToInfoString().AsCString());
     }
     else
@@ -2327,9 +2327,9 @@ void Mac::ProcessCsl(const RxFrame &aFrame, const Address &aSrcAddr)
     child->SetCslSynchronized(true);
     child->SetCslLastHeard(TimerMilli::GetNow());
     child->SetLastRxTimestamp(aFrame.GetTimestamp());
-    LogDebg("Timestamp=%u Sequence=%u CslPeriod=%hu CslPhase=%hu TransmitPhase=%hu",
-            static_cast<uint32_t>(aFrame.GetTimestamp()), aFrame.GetSequence(), csl->GetPeriod(), csl->GetPhase(),
-            child->GetCslPhase());
+    LogDebg("Timestamp=%lu Sequence=%u CslPeriod=%u CslPhase=%u TransmitPhase=%u",
+            ToUlong(static_cast<uint32_t>(aFrame.GetTimestamp())), aFrame.GetSequence(), csl->GetPeriod(),
+            csl->GetPhase(), child->GetCslPhase());
 
     Get<CslTxScheduler>().Update();
 
diff --git a/src/core/mac/sub_mac.cpp b/src/core/mac/sub_mac.cpp
index 398b6d35a..38bae700a 100644
--- a/src/core/mac/sub_mac.cpp
+++ b/src/core/mac/sub_mac.cpp
@@ -485,7 +485,7 @@ void SubMac::StartTimerForBackoff(uint8_t aBackoffExponent)
 #if OPENTHREAD_CONFIG_MAC_ADD_DELAY_ON_NO_ACK_ERROR_BEFORE_RETRY
     if (mState == kStateDelayBeforeRetx)
     {
-        LogDebg("Delaying retx for %u usec (be=%d)", backoff, aBackoffExponent);
+        LogDebg("Delaying retx for %lu usec (be=%u)", ToUlong(backoff), aBackoffExponent);
     }
 #endif
 }
@@ -1103,7 +1103,7 @@ void SubMac::HandleCslTimer(void)
 #if !OPENTHREAD_CONFIG_MAC_CSL_DEBUG_ENABLE
             IgnoreError(Get<Radio>().Sleep()); // Don't actually sleep for debugging
 #endif
-            LogDebg("CSL sleep %u", mCslTimer.GetNow().GetValue());
+            LogDebg("CSL sleep %lu", ToUlong(mCslTimer.GetNow().GetValue()));
         }
     }
     else
@@ -1131,7 +1131,8 @@ void SubMac::HandleCslTimer(void)
         else if (mState == kStateCslSample)
         {
             IgnoreError(Get<Radio>().Receive(mCslChannel));
-            LogDebg("CSL sample %u, duration %u", mCslTimer.GetNow().GetValue(), timeAhead + timeAfter);
+            LogDebg("CSL sample %lu, duration %lu", ToUlong(mCslTimer.GetNow().GetValue()),
+                    ToUlong(timeAhead + timeAfter));
         }
     }
 }
diff --git a/src/core/meshcop/border_agent.cpp b/src/core/meshcop/border_agent.cpp
index db62c5757..d3caf88d2 100644
--- a/src/core/meshcop/border_agent.cpp
+++ b/src/core/meshcop/border_agent.cpp
@@ -211,7 +211,7 @@ exit:
     {
         FreeMessage(message);
 
-        LogWarn("Commissioner request[%hu] failed: %s", aForwardContext.GetMessageId(), ErrorToString(error));
+        LogWarn("Commissioner request[%u] failed: %s", aForwardContext.GetMessageId(), ErrorToString(error));
 
         SendErrorMessage(aForwardContext, error);
     }
diff --git a/src/core/meshcop/dataset_manager.cpp b/src/core/meshcop/dataset_manager.cpp
index ca7f3b748..cf4e244d9 100644
--- a/src/core/meshcop/dataset_manager.cpp
+++ b/src/core/meshcop/dataset_manager.cpp
@@ -783,7 +783,7 @@ void PendingDatasetManager::StartDelayTimer(void)
         }
 
         mDelayTimer.StartAt(dataset.GetUpdateTime(), delay);
-        LogInfo("delay timer started %d", delay);
+        LogInfo("delay timer started %lu", ToUlong(delay));
     }
 }
 
diff --git a/src/core/meshcop/dtls.cpp b/src/core/meshcop/dtls.cpp
index f15beb9ea..4c2e61eea 100644
--- a/src/core/meshcop/dtls.cpp
+++ b/src/core/meshcop/dtls.cpp
@@ -977,20 +977,20 @@ void Dtls::HandleMbedtlsDebug(int aLevel, const char *aFile, int aLine, const ch
     switch (aLevel)
     {
     case 1:
-        LogCrit("[%hu] %s", mSocket.GetSockName().mPort, aStr);
+        LogCrit("[%u] %s", mSocket.GetSockName().mPort, aStr);
         break;
 
     case 2:
-        LogWarn("[%hu] %s", mSocket.GetSockName().mPort, aStr);
+        LogWarn("[%u] %s", mSocket.GetSockName().mPort, aStr);
         break;
 
     case 3:
-        LogInfo("[%hu] %s", mSocket.GetSockName().mPort, aStr);
+        LogInfo("[%u] %s", mSocket.GetSockName().mPort, aStr);
         break;
 
     case 4:
     default:
-        LogDebg("[%hu] %s", mSocket.GetSockName().mPort, aStr);
+        LogDebg("[%u] %s", mSocket.GetSockName().mPort, aStr);
         break;
     }
 }
diff --git a/src/core/net/srp_client.cpp b/src/core/net/srp_client.cpp
index ff642add0..085509401 100644
--- a/src/core/net/srp_client.cpp
+++ b/src/core/net/srp_client.cpp
@@ -777,7 +777,7 @@ void Client::SendUpdate(void)
 
     if (length >= Ip6::kMaxDatagramLength)
     {
-        LogInfo("Msg len %u is larger than MTU, enabling single service mode", length);
+        LogInfo("Msg len %lu is larger than MTU, enabling single service mode", ToUlong(length));
         mSingleServiceMode = true;
         IgnoreError(message->SetLength(0));
         SuccessOrExit(error = PrepareUpdateMessage(*message));
@@ -833,7 +833,7 @@ exit:
             interval = Random::NonCrypto::AddJitter(kTxFailureRetryInterval, kTxFailureRetryJitter);
             mTimer.Start(interval);
 
-            LogInfo("Quick retry %d in %u msec", mTxFailureRetryCount, interval);
+            LogInfo("Quick retry %u in %lu msec", mTxFailureRetryCount, ToUlong(interval));
 
             // Do not report message preparation errors to user
             // until `kMaxTxFailureRetries` are exhausted.
@@ -2220,7 +2220,7 @@ void Client::LogRetryWaitInterval(void) const
 
     uint32_t interval = GetRetryWaitInterval();
 
-    LogInfo("Retry interval %u %s", (interval < kLogInMsecLimit) ? interval : Time::MsecToSec(interval),
+    LogInfo("Retry interval %lu %s", ToUlong((interval < kLogInMsecLimit) ? interval : Time::MsecToSec(interval)),
             (interval < kLogInMsecLimit) ? "ms" : "sec");
 }
 
diff --git a/src/core/net/srp_server.cpp b/src/core/net/srp_server.cpp
index 24329ff1b..154d99701 100644
--- a/src/core/net/srp_server.cpp
+++ b/src/core/net/srp_server.cpp
@@ -346,7 +346,7 @@ void Server::RemoveHost(Host *aHost, RetainName aRetainName, NotifyMode aNotifyS
     {
         uint32_t updateId = AllocateId();
 
-        LogInfo("SRP update handler is notified (updatedId = %u)", updateId);
+        LogInfo("SRP update handler is notified (updatedId = %lu)", ToUlong(updateId));
         mServiceUpdateHandler(updateId, aHost, kDefaultEventsHandlerTimeout, mServiceUpdateHandlerContext);
         // We don't wait for the reply from the service update handler,
         // but always remove the host (and its services) regardless of
@@ -406,13 +406,14 @@ void Server::HandleServiceUpdateResult(ServiceUpdateId aId, Error aError)
     }
     else
     {
-        LogInfo("Delayed SRP host update result, the SRP update has been committed (updateId = %u)", aId);
+        LogInfo("Delayed SRP host update result, the SRP update has been committed (updateId = %lu)", ToUlong(aId));
     }
 }
 
 void Server::HandleServiceUpdateResult(UpdateMetadata *aUpdate, Error aError)
 {
-    LogInfo("Handler result of SRP update (id = %u) is received: %s", aUpdate->GetId(), ErrorToString(aError));
+    LogInfo("Handler result of SRP update (id = %lu) is received: %s", ToUlong(aUpdate->GetId()),
+            ErrorToString(aError));
 
     IgnoreError(mOutstandingUpdates.Remove(*aUpdate));
     CommitSrpUpdate(aError, *aUpdate);
@@ -734,7 +735,7 @@ void Server::ProcessDnsUpdate(Message &aMessage, MessageMetadata &aMetadata)
 
     if (FindOutstandingUpdate(aMetadata) != nullptr)
     {
-        LogInfo("Drop duplicated SRP update request: MessageId=%hu", aMetadata.mDnsHeader.GetMessageId());
+        LogInfo("Drop duplicated SRP update request: MessageId=%u", aMetadata.mDnsHeader.GetMessageId());
 
         // Silently drop duplicate requests.
         // This could rarely happen, because the outstanding SRP update timer should
@@ -1337,7 +1338,8 @@ void Server::InformUpdateHandlerOrCommit(Error aError, Host &aHost, const Messag
 
         LogInfo("Processed DNS update info");
         LogInfo("    Host:%s", aHost.GetFullName());
-        LogInfo("    Lease:%u, key-lease:%u, ttl:%u", aHost.GetLease(), aHost.GetKeyLease(), aHost.GetTtl());
+        LogInfo("    Lease:%lu, key-lease:%lu, ttl:%lu", ToUlong(aHost.GetLease()), ToUlong(aHost.GetKeyLease()),
+                ToUlong(aHost.GetTtl()));
 
         addrs = aHost.GetAddresses(numAddrs);
 
@@ -1380,7 +1382,7 @@ void Server::InformUpdateHandlerOrCommit(Error aError, Host &aHost, const Messag
             mOutstandingUpdates.Push(*update);
             mOutstandingUpdatesTimer.FireAtIfEarlier(update->GetExpireTime());
 
-            LogInfo("SRP update handler is notified (updatedId = %u)", update->GetId());
+            LogInfo("SRP update handler is notified (updatedId = %lu)", ToUlong(update->GetId()));
             mServiceUpdateHandler(update->GetId(), &aHost, kDefaultEventsHandlerTimeout, mServiceUpdateHandlerContext);
             ExitNow();
         }
@@ -1469,7 +1471,7 @@ void Server::SendResponse(const Dns::UpdateHeader &aHeader,
 
     SuccessOrExit(error = GetSocket().SendTo(*response, aMessageInfo));
 
-    LogInfo("Send success response with granted lease: %u and key lease: %u", aLease, aKeyLease);
+    LogInfo("Send success response with granted lease: %lu and key lease: %lu", ToUlong(aLease), ToUlong(aKeyLease));
 
     UpdateResponseCounters(Dns::UpdateHeader::kResponseSuccess);
 
@@ -1631,7 +1633,7 @@ void Server::HandleLeaseTimer(void)
         OT_ASSERT(earliestExpireTime >= now);
         if (!mLeaseTimer.IsRunning() || earliestExpireTime <= mLeaseTimer.GetFireTime())
         {
-            LogInfo("Lease timer is scheduled for %u seconds", Time::MsecToSec(earliestExpireTime - now));
+            LogInfo("Lease timer is scheduled for %lu seconds", ToUlong(Time::MsecToSec(earliestExpireTime - now)));
             mLeaseTimer.StartAt(earliestExpireTime, 0);
         }
     }
@@ -1646,7 +1648,7 @@ void Server::HandleOutstandingUpdatesTimer(void)
 {
     while (!mOutstandingUpdates.IsEmpty() && mOutstandingUpdates.GetTail()->GetExpireTime() <= TimerMilli::GetNow())
     {
-        LogInfo("Outstanding service update timeout (updateId = %u)", mOutstandingUpdates.GetTail()->GetId());
+        LogInfo("Outstanding service update timeout (updateId = %lu)", ToUlong(mOutstandingUpdates.GetTail()->GetId()));
         HandleServiceUpdateResult(mOutstandingUpdates.GetTail(), kErrorResponseTimeout);
     }
 }
@@ -2078,7 +2080,7 @@ void Server::Host::RemoveService(Service *aService, RetainName aRetainName, Noti
     {
         uint32_t updateId = server.AllocateId();
 
-        LogInfo("SRP update handler is notified (updatedId = %u)", updateId);
+        LogInfo("SRP update handler is notified (updatedId = %lu)", ToUlong(updateId));
         server.mServiceUpdateHandler(updateId, this, kDefaultEventsHandlerTimeout, server.mServiceUpdateHandlerContext);
         // We don't wait for the reply from the service update handler,
         // but always remove the service regardless of service update result.
diff --git a/src/core/net/tcp6.cpp b/src/core/net/tcp6.cpp
index 79824d3be..0b9ac475a 100644
--- a/src/core/net/tcp6.cpp
+++ b/src/core/net/tcp6.cpp
@@ -1116,7 +1116,7 @@ void tcplp_sys_log(const char *aFormat, ...)
     vsnprintf(buffer, sizeof(buffer), aFormat, args);
     va_end(args);
 
-    LogDebg(buffer);
+    LogDebg("%s", buffer);
 }
 
 void tcplp_sys_panic(const char *aFormat, ...)
diff --git a/src/core/net/tcp6_ext.cpp b/src/core/net/tcp6_ext.cpp
index c789d45b4..a344373fa 100644
--- a/src/core/net/tcp6_ext.cpp
+++ b/src/core/net/tcp6_ext.cpp
@@ -170,7 +170,7 @@ void TcpCircularSendBuffer::HandleForwardProgress(size_t aInSendBuffer)
     size_t bytesUntilWrap;
 
     OT_ASSERT(aInSendBuffer <= mCapacityUsed);
-    LogDebg("Forward progress: %u bytes in send buffer\n", aInSendBuffer);
+    LogDebg("Forward progress: %u bytes in send buffer\n", static_cast<unsigned>(aInSendBuffer));
     bytesRemoved   = mCapacityUsed - aInSendBuffer;
     bytesUntilWrap = mCapacity - mStartIndex;
 
diff --git a/src/core/thread/announce_sender.cpp b/src/core/thread/announce_sender.cpp
index c5005761a..16b6fd042 100644
--- a/src/core/thread/announce_sender.cpp
+++ b/src/core/thread/announce_sender.cpp
@@ -259,7 +259,7 @@ void AnnounceSender::HandleActiveDatasetChanged(void)
 
     SetChannelMask(channelMask);
     SetPeriod(kTxInterval / channelMask.GetNumberOfChannels());
-    LogInfo("ChannelMask:%s, period:%u", GetChannelMask().ToString().AsCString(), GetPeriod());
+    LogInfo("ChannelMask:%s, period:%lu", GetChannelMask().ToString().AsCString(), ToUlong(GetPeriod()));
 
     // When channel mask is changed, we also check and update the PAN
     // channel. This handles the case where `ThreadChannelChanged` event
diff --git a/src/core/thread/link_metrics.cpp b/src/core/thread/link_metrics.cpp
index 6afb8daa5..66c39f3f8 100644
--- a/src/core/thread/link_metrics.cpp
+++ b/src/core/thread/link_metrics.cpp
@@ -464,25 +464,25 @@ void LinkMetrics::HandleReport(const Message &     aMessage,
             case TypeId::kPdu:
                 values.mMetrics.mPduCount = true;
                 values.mPduCountValue     = reportTlv.GetMetricsValue32();
-                LogDebg(" - PDU Counter: %d (Count/Summation)", values.mPduCountValue);
+                LogDebg(" - PDU Counter: %lu (Count/Summation)", ToUlong(values.mPduCountValue));
                 break;
 
             case TypeId::kLqi:
                 values.mMetrics.mLqi = true;
                 values.mLqiValue     = reportTlv.GetMetricsValue8();
-                LogDebg(" - LQI: %d (Exponential Moving Average)", values.mLqiValue);
+                LogDebg(" - LQI: %u (Exponential Moving Average)", values.mLqiValue);
                 break;
 
             case TypeId::kLinkMargin:
                 values.mMetrics.mLinkMargin = true;
                 values.mLinkMarginValue     = ScaleRawValueToLinkMargin(reportTlv.GetMetricsValue8());
-                LogDebg(" - Margin: %d (dB) (Exponential Moving Average)", values.mLinkMarginValue);
+                LogDebg(" - Margin: %u (dB) (Exponential Moving Average)", values.mLinkMarginValue);
                 break;
 
             case TypeId::kRssi:
                 values.mMetrics.mRssi = true;
                 values.mRssiValue     = ScaleRawValueToRssi(reportTlv.GetMetricsValue8());
-                LogDebg(" - RSSI: %d (dBm) (Exponential Moving Average)", values.mRssiValue);
+                LogDebg(" - RSSI: %u (dBm) (Exponential Moving Average)", values.mRssiValue);
                 break;
             }
 
diff --git a/src/core/thread/mesh_forwarder.cpp b/src/core/thread/mesh_forwarder.cpp
index bdd9a79d3..5d6975aff 100644
--- a/src/core/thread/mesh_forwarder.cpp
+++ b/src/core/thread/mesh_forwarder.cpp
@@ -1244,7 +1244,7 @@ void MeshForwarder::HandleSentFrame(Mac::TxFrame &aFrame, Error aError)
     if (mDelayNextTx && (aError == kErrorNone))
     {
         mTxDelayTimer.Start(kTxDelayInterval);
-        LogDebg("Start tx delay timer for %u msec", kTxDelayInterval);
+        LogDebg("Start tx delay timer for %lu msec", ToUlong(kTxDelayInterval));
     }
     else
     {
diff --git a/src/core/thread/mle.cpp b/src/core/thread/mle.cpp
index 61530d826..83387165a 100644
--- a/src/core/thread/mle.cpp
+++ b/src/core/thread/mle.cpp
@@ -656,8 +656,8 @@ uint32_t Mle::GetAttachStartDelay(void) const
         delay += jitter;
     }
 
-    LogNote("Attach attempt %d unsuccessful, will try again in %u.%03u seconds", mAttachCounter, delay / 1000,
-            delay % 1000);
+    LogNote("Attach attempt %u unsuccessful, will try again in %lu.%03u seconds", mAttachCounter, ToUlong(delay / 1000),
+            static_cast<uint16_t>(delay % 1000));
 
 exit:
     return delay;
diff --git a/src/core/thread/mle_router.cpp b/src/core/thread/mle_router.cpp
index ffe50e6de..ef2cc90f0 100644
--- a/src/core/thread/mle_router.cpp
+++ b/src/core/thread/mle_router.cpp
@@ -439,7 +439,7 @@ void MleRouter::SetStateLeader(uint16_t aRloc16, LeaderStartMode aStartMode)
     Get<Mac::Mac>().UpdateCsl();
 #endif
 
-    LogNote("Leader partition id 0x%x", mLeaderData.GetPartitionId());
+    LogNote("Leader partition id 0x%lx", ToUlong(mLeaderData.GetPartitionId()));
 }
 
 void MleRouter::HandleAdvertiseTrickleTimer(TrickleTimer &aTimer)
@@ -1246,7 +1246,8 @@ Error MleRouter::HandleAdvertisement(RxInfo &aRxInfo)
 
     if (partitionId != mLeaderData.GetPartitionId())
     {
-        LogNote("Different partition (peer:%u, local:%u)", partitionId, mLeaderData.GetPartitionId());
+        LogNote("Different partition (peer:%lu, local:%lu)", ToUlong(partitionId),
+                ToUlong(mLeaderData.GetPartitionId()));
 
         VerifyOrExit(linkMargin >= OPENTHREAD_CONFIG_MLE_PARTITION_MERGE_MARGIN_MIN, error = kErrorLinkMarginLow);
 
@@ -1873,7 +1874,7 @@ void MleRouter::HandleTimeTick(void)
 
     case kRoleRouter:
         // verify path to leader
-        LogDebg("network id timeout = %d", mRouterTable.GetLeaderAge());
+        LogDebg("network id timeout = %lu", ToUlong(mRouterTable.GetLeaderAge()));
 
         if ((mRouterTable.GetActiveRouterCount() > 0) && (mRouterTable.GetLeaderAge() >= mNetworkIdTimeout))
         {
@@ -2175,7 +2176,7 @@ Error MleRouter::UpdateChildAddresses(const Message &aMessage, uint16_t aOffset,
         {
             if (Get<NetworkData::Leader>().GetContext(entry.GetContextId(), context) != kErrorNone)
             {
-                LogWarn("Failed to get context %d for compressed address from child 0x%04x", entry.GetContextId(),
+                LogWarn("Failed to get context %u for compressed address from child 0x%04x", entry.GetContextId(),
                         aChild.GetRloc16());
                 continue;
             }
@@ -2225,7 +2226,7 @@ Error MleRouter::UpdateChildAddresses(const Message &aMessage, uint16_t aOffset,
             }
 #endif
 
-            LogInfo("Child 0x%04x IPv6 address[%d]=%s", aChild.GetRloc16(), storedCount,
+            LogInfo("Child 0x%04x IPv6 address[%u]=%s", aChild.GetRloc16(), storedCount,
                     address.ToString().AsCString());
         }
         else
@@ -2288,7 +2289,7 @@ Error MleRouter::UpdateChildAddresses(const Message &aMessage, uint16_t aOffset,
     }
     else
     {
-        LogInfo("Child 0x%04x has %d registered IPv6 address%s, %d address%s stored", aChild.GetRloc16(),
+        LogInfo("Child 0x%04x has %u registered IPv6 address%s, %u address%s stored", aChild.GetRloc16(),
                 registeredCount, (registeredCount == 1) ? "" : "es", storedCount, (storedCount == 1) ? "" : "es");
     }
 
@@ -3936,7 +3937,7 @@ template <> void MleRouter::HandleTmf<kUriAddressSolicit>(Coap::Message &aMessag
             (Get<NetworkData::Leader>().CountBorderRouters(NetworkData::kRouterRoleOnly) >=
              kRouterUpgradeBorderRouterRequestThreshold))
         {
-            LogInfo("Rejecting BR %s router role req - have %d BR routers", extAddress.ToString().AsCString(),
+            LogInfo("Rejecting BR %s router role req - have %u BR routers", extAddress.ToString().AsCString(),
                     kRouterUpgradeBorderRouterRequestThreshold);
             ExitNow();
         }
@@ -3953,7 +3954,7 @@ template <> void MleRouter::HandleTmf<kUriAddressSolicit>(Coap::Message &aMessag
 
         if (router != nullptr)
         {
-            LogInfo("Router id %d requested and provided!", RouterIdFromRloc16(rloc16));
+            LogInfo("Router id %u requested and provided!", RouterIdFromRloc16(rloc16));
         }
     }
 
diff --git a/src/core/thread/mlr_manager.cpp b/src/core/thread/mlr_manager.cpp
index ac9e1fa90..298091e30 100644
--- a/src/core/thread/mlr_manager.cpp
+++ b/src/core/thread/mlr_manager.cpp
@@ -672,7 +672,7 @@ void MlrManager::UpdateReregistrationDelay(bool aRereg)
     UpdateTimeTickerRegistration();
 
     LogDebg("MlrManager::UpdateReregistrationDelay: rereg=%d, needSendMlr=%d, ReregDelay=%lu", aRereg, needSendMlr,
-            mReregistrationDelay);
+            ToUlong(mReregistrationDelay));
 }
 
 void MlrManager::LogMulticastAddresses(void)
diff --git a/src/core/thread/network_data_publisher.cpp b/src/core/thread/network_data_publisher.cpp
index 71b6daa30..c040d2801 100644
--- a/src/core/thread/network_data_publisher.cpp
+++ b/src/core/thread/network_data_publisher.cpp
@@ -472,7 +472,7 @@ exit:
 
 void Publisher::Entry::LogUpdateTime(void) const
 {
-    LogInfo("%s - update in %u msec", ToString().AsCString(), mUpdateTime - TimerMilli::GetNow());
+    LogInfo("%s - update in %lu msec", ToString().AsCString(), ToUlong(mUpdateTime - TimerMilli::GetNow()));
 }
 
 const char *Publisher::Entry::StateToString(State aState)
diff --git a/src/core/thread/time_sync_service.cpp b/src/core/thread/time_sync_service.cpp
index 6ea3401cf..a71e1b018 100644
--- a/src/core/thread/time_sync_service.cpp
+++ b/src/core/thread/time_sync_service.cpp
@@ -237,8 +237,8 @@ void TimeSync::CheckAndHandleChanges(bool aTimeUpdated)
         {
             // The device hasn’t received time sync for more than two periods time.
             networkTimeStatus = OT_NETWORK_TIME_RESYNC_NEEDED;
-            LogInfo("Time sync status RESYNC_NEEDED as timeSyncLastSyncMs:%u > resyncNeededThresholdMs:%u",
-                    timeSyncLastSyncMs, resyncNeededThresholdMs);
+            LogInfo("Time sync status RESYNC_NEEDED as timeSyncLastSyncMs:%lu > resyncNeededThresholdMs:%lu",
+                    ToUlong(timeSyncLastSyncMs), ToUlong(resyncNeededThresholdMs));
         }
         else
         {
diff --git a/src/core/utils/channel_manager.cpp b/src/core/utils/channel_manager.cpp
index 8bc258708..1303509f7 100644
--- a/src/core/utils/channel_manager.cpp
+++ b/src/core/utils/channel_manager.cpp
@@ -186,8 +186,8 @@ Error ChannelManager::FindBetterChannel(uint8_t &aNewChannel, uint16_t &aOccupan
 
     if (Get<ChannelMonitor>().GetSampleCount() <= kMinChannelMonitorSampleCount)
     {
-        LogInfo("Too few samples (%d <= %d) to select channel", Get<ChannelMonitor>().GetSampleCount(),
-                kMinChannelMonitorSampleCount);
+        LogInfo("Too few samples (%lu <= %lu) to select channel", ToUlong(Get<ChannelMonitor>().GetSampleCount()),
+                ToUlong(kMinChannelMonitorSampleCount));
         ExitNow(error = kErrorInvalidState);
     }
 
diff --git a/src/core/utils/channel_monitor.cpp b/src/core/utils/channel_monitor.cpp
index c9d962316..b707a79b6 100644
--- a/src/core/utils/channel_monitor.cpp
+++ b/src/core/utils/channel_monitor.cpp
@@ -195,7 +195,7 @@ void ChannelMonitor::LogResults(void)
         logString.Append("%02x ", channel >> 8);
     }
 
-    LogInfo("%u [%s]", mSampleCount, logString.AsCString());
+    LogInfo("%lu [%s]", ToUlong(mSampleCount), logString.AsCString());
 #endif
 }