Fitness Calculators and Tools

Interactive fitness tools for your training and nutrition.

Progressive Overload Calculator: Plan Your Next Sessions

Enter the weight and reps from your last working set, your rep range, and the smallest weight increase you can load. The calculator returns a target for each of your next sessions and shows when the weight goes up.

One-Rep Max Calculator: Estimate Your 1RM

Estimate how much weight you can lift for one repetition based on the weight and repetitions of a completed set.

Weight Plate Calculator: Plates Per Side

Choose your bar, target weight, unit, and the available plate sizes and pairs. The calculator shows the plates for each side and flags targets that cannot be matched exactly.

Daily Calorie Needs Calculator: Estimate Calories

Estimate how many calories you need per day based on your body measurements, activity level, and weight goal.