Chrome Devtools ACTUAL data size/transferred

On top, you can see the size of the file transferred over the network (which may be compressed by your server).

The uncompressed size of the file is displayed in gray just below.

Official documentation here: https://developers.google.com/web/tools/chrome-devtools/network/reference#uncompressed

Chrome inspect gives u a bunch of filters such as All,XHR , JS , img. So the amount is for the filtered part of ur data. If you select "All" option in the filter you will find something like 14.7MB/14.7MB