Calculates the size of an image on a Docker registry. It takes into account image indexes (images for all platforms), image manifests and all the layers. Currently it doesn't take into account the size of image configs. But its likely that thier size if negligible compared to the actual images.

go install github.com/dvob/calc-image-size@latest

calc-image-size IMAGE1 IMAGE2 ... IMAGEN

If images do not have a specifc tag, all tags are used.

Calculate only specific latest tag for busybox but all tags for dvob/http-server

calc-image-size busybox:latest dvob/http-server