Quick gym math

Tools

Calories and protein, your one-rep max, and which plates go on the bar. Nothing you type leaves your device.

Switch units any time. Anything you have typed converts automatically.

Units

Calorie estimator

An estimate of what you burn in a day, and a target for your goal.

Body type used by the formula
ft in

One-rep max

Enter a recent hard set to estimate your max and pick working weights.

Plate loader

Type the total weight you want. See what goes on each side.

PR warm-up

Going for a new one-rep max? Pick the lift and the weight you want to hit. You'll get every warm-up set, from the empty bar up, so you're ready without wearing yourself out.

Lift

Weight trend

Your weight jumps around day to day with water, salt, and food. The 7-day average shows what's really happening.

Best habit: weigh yourself in the morning, after the bathroom, before eating, a few times a week.

    These tools give estimates for healthy adults. They aren't medical advice. If you have a health condition, are pregnant, or have struggled with eating in the past, talk with a doctor or registered dietitian before changing how you eat.