Tools
Tools that do the math
Every calculator explains how it works and what it can't tell you. No email, no account, and your numbers never leave the page you're on.
All tools
One-rep max
Turn a set you've already done into training loads you can program with.
Warm-up ramp
The sets that take you from the empty bar to your first working set.
Plate loader
Exactly which plates go on each side of the bar.
Protein target
A daily protein range for your bodyweight and goal.
Maintenance calories
An estimate of what you burn in a day, and a sensible fat-loss target from it.
Fat-loss timeline
How long a goal weight realistically takes at a sustainable rate.
Waist-to-height ratio
A simple measure of where you carry weight, which the scale cannot show.
Heart-rate zones
Training zones for easy aerobic work and harder intervals.
Estimates, not prescriptions. Formulas describe populations; you are one person. Treat each result as a starting point to test, and trust your own logbook over any calculator.