diff --git a/src/ArduinoJson/Array/ArrayRef.hpp b/src/ArduinoJson/Array/ArrayRef.hpp
index e25a6bd5..dc94f634 100644
--- a/src/ArduinoJson/Array/ArrayRef.hpp
+++ b/src/ArduinoJson/Array/ArrayRef.hpp
@@ -10,11 +10,6 @@
 #include <ArduinoJson/Variant/VariantAttorney.hpp>
 #include <ArduinoJson/Variant/VariantData.hpp>
 
-// Returns the size (in bytes) of an array with n elements.
-// Can be very handy to determine the size of a StaticMemoryPool.
-#define JSON_ARRAY_SIZE(NUMBER_OF_ELEMENTS) \
-  ((NUMBER_OF_ELEMENTS) * sizeof(ARDUINOJSON_NAMESPACE::VariantSlot))
-
 namespace ARDUINOJSON_NAMESPACE {
 
 class ObjectRef;
diff --git a/src/ArduinoJson/Memory/MemoryPool.hpp b/src/ArduinoJson/Memory/MemoryPool.hpp
index e150d01c..fe09a9f3 100644
--- a/src/ArduinoJson/Memory/MemoryPool.hpp
+++ b/src/ArduinoJson/Memory/MemoryPool.hpp
@@ -14,6 +14,16 @@
 
 #define JSON_STRING_SIZE(SIZE) (SIZE + 1)
 
+// Returns the size (in bytes) of an array with n elements.
+// Can be very handy to determine the size of a StaticMemoryPool.
+#define JSON_ARRAY_SIZE(NUMBER_OF_ELEMENTS) \
+  ((NUMBER_OF_ELEMENTS) * sizeof(ARDUINOJSON_NAMESPACE::VariantSlot))
+
+// Returns the size (in bytes) of an object with n elements.
+// Can be very handy to determine the size of a StaticMemoryPool.
+#define JSON_OBJECT_SIZE(NUMBER_OF_ELEMENTS) \
+  ((NUMBER_OF_ELEMENTS) * sizeof(ARDUINOJSON_NAMESPACE::VariantSlot))
+
 namespace ARDUINOJSON_NAMESPACE {
 
 // _begin                                   _end
diff --git a/src/ArduinoJson/Object/ObjectRef.hpp b/src/ArduinoJson/Object/ObjectRef.hpp
index 59f94c4f..69f469db 100644
--- a/src/ArduinoJson/Object/ObjectRef.hpp
+++ b/src/ArduinoJson/Object/ObjectRef.hpp
@@ -8,11 +8,6 @@
 #include <ArduinoJson/Object/ObjectFunctions.hpp>
 #include <ArduinoJson/Object/ObjectIterator.hpp>
 
-// Returns the size (in bytes) of an object with n elements.
-// Can be very handy to determine the size of a StaticMemoryPool.
-#define JSON_OBJECT_SIZE(NUMBER_OF_ELEMENTS) \
-  ((NUMBER_OF_ELEMENTS) * sizeof(ARDUINOJSON_NAMESPACE::VariantSlot))
-
 namespace ARDUINOJSON_NAMESPACE {
 
 class ArrayRef;