Open calculators
The formula is part of the answer.
Free, transparent calculators for estimated one-rep max, weekly hard-set volume, and calorie/macro targets, with formulas, assumptions, and cited limits.
Calculator register
Run the number. Keep the assumptions.
Early access on iOS
Calculators underneath. Notebook on top.
Flexbound early access is open on iOS. Email us to join the first cohort. One email, nothing else.