The Theoretical Forge
a semi-accurate upgrade calculator by danielOut
Please read the notes at the bottom!
Currently the calculator works for physical damage only.

Input Stats!

Upgrade Levels:
Starting Damage:
Staff? No | Yes

Please enter stats to generate number.

Most Important:This number is far less than you will get on the DPS dummy.
I don't know the multiplier for hero attack, so I can't tell you how much damage your character will do. This should get you (close) to the base damage number of the weapon when fully upgraded. I'm assuming an upgrade rate of 14.75%, which has gotten me better numbers than a flat 15%, and (hopefully) prevents me from giving numbers that are too high. I'm assuming a damage upgrade cap of 80 for all weapons except staves, which seem to cap at 48.
Upgrading a Van Wolf? Those are way different, so go here.