diff --git a/homeassistant/components/onedrive/coordinator.py b/homeassistant/components/onedrive/coordinator.py
index 7b2dbaab87a..3eb7d762712 100644
--- a/homeassistant/components/onedrive/coordinator.py
+++ b/homeassistant/components/onedrive/coordinator.py
@@ -88,8 +88,8 @@ class OneDriveUpdateCoordinator(DataUpdateCoordinator[Drive]):
                 ),
                 translation_key=key,
                 translation_placeholders={
-                    "total": str(drive.quota.total),
-                    "used": str(drive.quota.used),
+                    "total": f"{drive.quota.total / (1024**3):.2f}",
+                    "used": f"{drive.quota.used / (1024**3):.2f}",
                 },
             )
         return drive