Check your iCloud storage on iCloud.com
On iCloud.com, you can see how much iCloud storage you have and how much is available.
Go to icloud.com/storage, then sign in to your Apple Account (if necessary).
Tip: If you are already on iCloud.com, you can also tap
in the toolbar, then tap Your iCloud Storage.Below the storage bar, you see a list of apps and features and how much iCloud storage they use.
The apps and features that use the most storage are at the top of the list.