Check your iCloud storage on iCloud.com
On iCloud.com, you can see how much iCloud storage you have and how much is available.
On iCloud.com, click in the toolbar, then click 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.
See alsoGet more iCloud features