diff --git a/arm_compute/core/Helpers.h b/arm_compute/core/Helpers.h
index 09c672e..8f1426a 100644
--- a/arm_compute/core/Helpers.h
+++ b/arm_compute/core/Helpers.h
@@ -801,6 +801,19 @@
     return x >= 0 ? x % m : (x % m + m) % m;
 }
 
+/** Convert a dimension axis to the number of dimensions in the range [0, @p dim_axis]
+ * Handle negative axis, negative axis is used to specify axis from the end (e.g. -1 for the last axis).
+ *
+ * @param[in] dim_axis The last axis (inclusive) in the range [0, @p dim_axis]
+ * @param[in] num_dims The total number of dimensions
+ *
+ * @return The number of dimensions in the range [0, @p dim_axis]
+ */
+inline size_t dim_index_2_num_dims(int32_t dim_axis, int32_t num_dims)
+{
+    return static_cast<size_t>(wrap_around(dim_axis, num_dims)) + 1;
+}
+
 /** Convert negative coordinates to positive in the range [0, num_dims_input]
  *
  * @param[out] coords    Array of coordinates to be converted.