diff --git a/mlx/c/array.cpp b/mlx/c/array.cpp
index 4debd71..f12281c 100644
--- a/mlx/c/array.cpp
+++ b/mlx/c/array.cpp
@@ -79,6 +79,10 @@ extern "C" mlx_array mlx_array_from_data(
   }
 }
 
+extern "C" size_t mlx_array_dtype_size(mlx_array_dtype dtype) {
+  return MLX_CPP_ARRAY_DTYPE(dtype).size();
+}
+
 extern "C" size_t mlx_array_itemsize(mlx_array arr) {
   return MLX_CPP_ARRAY(arr).itemsize();
 }
diff --git a/mlx/c/array.h b/mlx/c/array.h
index 3b27df9..e30def1 100644
--- a/mlx/c/array.h
+++ b/mlx/c/array.h
@@ -74,6 +74,11 @@ mlx_array mlx_array_from_data(
     int dim,
     mlx_array_dtype dtype);
 
+/**
+ * The size of one element of the given datatype in bytes.
+ */
+size_t mlx_array_dtype_size(mlx_array_dtype dtype);
+
 /**
  * The size of the array's datatype in bytes.
  */