diff --git a/esphome/core/application.cpp b/esphome/core/application.cpp
index d1aa461d0eb..84a1fc346fe 100644
--- a/esphome/core/application.cpp
+++ b/esphome/core/application.cpp
@@ -199,10 +199,9 @@ void Application::process_dump_config_() {
 void HOT Application::feed_wdt_slow_(uint32_t time) {
   // Use provided time if available, otherwise get current time
   uint32_t now = time ? time : millis();
-  // Compare in milliseconds (3ms threshold). The inline wrapper already
-  // performs this check when time != 0; repeat it here for the time == 0
-  // entry and as a safety net.
-  if (now - this->last_wdt_feed_ > 3) {
+  // The inline wrapper already performs this check when time != 0;
+  // repeat it here for the time == 0 entry and as a safety net.
+  if (now - this->last_wdt_feed_ > WDT_FEED_INTERVAL_MS) {
     arch_feed_wdt();
     this->last_wdt_feed_ = now;
 #ifdef USE_STATUS_LED
diff --git a/esphome/core/application.h b/esphome/core/application.h
index f8e9b0e3607..7cde0bf85d9 100644
--- a/esphome/core/application.h
+++ b/esphome/core/application.h
@@ -385,6 +385,11 @@ class Application {
 
   void schedule_dump_config() { this->dump_config_at_ = 0; }
 
+  /// Minimum interval between real arch_feed_wdt() calls. Chosen to keep the
+  /// rate of HAL pokes low while still being small enough that any plausible
+  /// watchdog timeout (seconds) has orders of magnitude of safety margin.
+  static constexpr uint32_t WDT_FEED_INTERVAL_MS = 3;
+
   /// Feed the task watchdog. Hot-path inline rate-limit check: callers that
   /// already have a timestamp in hand pay only a load + sub + branch on the
   /// common (no-op) path. The actual arch feed + status LED update live in
@@ -393,7 +398,7 @@ class Application {
   /// Pass time==0 to request millis() be read for you (low-frequency callers
   /// only — always takes the slow path).
   void ESPHOME_ALWAYS_INLINE feed_wdt(uint32_t time = 0) {
-    if (time != 0 && static_cast<uint32_t>(time - this->last_wdt_feed_) <= 3) {
+    if (time != 0 && static_cast<uint32_t>(time - this->last_wdt_feed_) <= WDT_FEED_INTERVAL_MS) {
       return;
     }
     this->feed_wdt_slow_(time);