I have a whizzo spreadsheet I created to calculate a) actual SAC and b) a planner to confirm I have enough gas for a future dive.

If anyone would like a copy then PM me your email.

Unfortunately, I use ltrs/mtrs/bar, and I think most of you use cu ft/ft/psi?

The spreadsheet was created for me and my diving so it is basically for square profile diving (wrecks) and up to 2 gas mixes. If only using one mix then leave mix two at zero and ..............