We see in another post that it may be useful to reduce the size of every picture/photo you upload in WordPress in order not to consume the memory space you have available, that it depends on the plan you choose.
Usually it not so much (3GB for a Free account or 6GB for a Personal one).
We saw in that post then how to reduce the size of a picture, before loading it in WordPress, using even an embedded feature of Windows 10, so without having to ask for a graphic SW like Photoshop or an external service offered by some site (e.g. tinypng.com).
In this post I will show you how you can easily know how much available memory you still have on your WordPress account.
You have just to go in the Multimedia content (IT: Contenuto multimediale) section from the WordPress Administration site: