Fitness & Exercise Calculators

All fitness & exercise calculators in one place.

Estimate your one-rep max lift from a weight and rep count.

Estimate your VO2 max, a key measure of aerobic fitness.

Calculate your target heart rate zones for effective cardio training.

Estimate calories burned during a workout based on activity, weight, and duration.

Calculate your running pace, finish time, or target splits for a race.

Convert your daily step count into an estimated calorie burn.

Calculate your recommended daily water intake based on weight and activity.