FREE FITNESS CALCULATORS

Quick tools to plan your training and nutrition. Free to use with no sign up.

One Rep Max Calculator

Estimate the most you can lift for a single rep from any weight and rep count, with a full training percentage table.

TDEE Calculator

Work out how many calories you burn each day, then get clear targets for losing fat, staying the same, or building muscle.

Macro Calculator

Turn your calorie goal into a simple daily split of protein, carbs, and fat that supports your training.

Barbell Plate Calculator

Enter a target weight and see exactly which plates to load on each side of the bar. Works in kilos and pounds.