diff --git a/src/view/com/modals/crop-image/cropImageUtil.ts b/src/view/com/modals/crop-image/cropImageUtil.ts
new file mode 100644
index 0000000000..303d15ba5b
--- /dev/null
+++ b/src/view/com/modals/crop-image/cropImageUtil.ts
@@ -0,0 +1,13 @@
+export const calculateDimensions = (
+  maxWidth: number,
+  originalHeight: number,
+  originalWidth: number,
+) => {
+  const aspectRatio = originalWidth / originalHeight
+  const newHeight = maxWidth / aspectRatio
+  const newWidth = maxWidth
+  return {
+    width: newWidth,
+    height: newHeight,
+  }
+}