Home / Calculators

Free tools

Calculators that run in the page. No signup, no email, no results held back until you make an account. Each one shows its working so you can check it.

Strength

• Barbell plate calculator — what to hang on each side for any target, any bar weight, in pounds or kilos. Turn off the plates you do not own and it works around them.
• One-rep max calculator — five published formulas side by side, plus the percentage table programs are written in.

Food

• Macro calculator — calories from Mifflin-St Jeor, then protein, carbs and fat split around your goal.
• Protein calculator — grams per day for your bodyweight, training load and goal.
• How many calories should I eat — the estimate, and then how to replace it with your own measured number.

Reference

• Movement library — how each lift is performed, open with no account.

Why they are free and stay free

A calculator behind an email form is not a tool, it is a lead magnet. These do the arithmetic and show you how, and the pitch is at the bottom where you can ignore it. The app they belong to works the same way: the daily loop, the barcode scanner and the workout log are free, and your data exports as CSV whenever you want it.