SnapMyGym
Free, no-signup calculators for strength, nutrition, and recovery.
Free one-rep-max calculator using the Epley, Brzycki, and Lombardi formulas. Estimate your squat, bench, or deadlift 1RM from any heavy set — no signup.
Enter a target weight and bar — see exactly which plates to load on each side. Supports pound and kilogram bars. Free, no signup.
Turn your working weight into a smart warm-up ramp so your top set feels fast, not flat. Free warm-up set calculator, no signup.
Convert reps at a given RPE (reps in reserve) into an estimated percentage of 1RM and one-rep max. Free, no signup.
Compare strength across bodyweights with Wilks and DOTS coefficients — the powerlifting standard. Free calculator, no signup.
Estimate body-fat percentage from a tape measure using the U.S. Navy circumference method. Free, no signup.
See whether your squat, bench, deadlift, or press is beginner, intermediate, advanced, or elite for your bodyweight. Free, no signup.
Calculate daily calories plus protein, carb, and fat targets for cutting, maintaining, or bulking. Free macro calculator, no signup.
Find your total daily energy expenditure and cut/bulk calorie targets from BMR and activity level. Free TDEE calculator, no signup.
Get your max heart rate and five training zones from age and resting heart rate using the Karvonen method. Free, no signup.
Convert distance and time into pace and speed, with finish-time projections for 5K through marathon. Free, no signup.
See how much sleep debt you have accumulated and what recovery actually requires. Free sleep debt calculator, no signup.
Quick body-mass-index estimate with healthy-range markers — a baseline, not a verdict. Free BMI calculator, no signup.
Configurable interval timer for rest between sets, EMOMs, Tabatas, and HIIT circuits. Free, runs in your browser.