Health & Fitness Calculators

Tools to help you track and improve your health and fitness

Calculate your Body Mass Index to understand your weight category and healthy weight range.

Calculate your Total Daily Energy Expenditure to determine your daily calorie needs for weight management.

Determine your target heart rate zones for cardio, training, and recovery.

Find your recommended weight range using multiple medical formulas.

Estimate your body fat using skinfold and circumference measurements.

Determine optimal daily water intake based on weight, activity, and climate.

Calculate macronutrient targets to support your health and fitness goals.

Find the best time to sleep or wake up based on ideal sleep cycles.

Calculate your one-rep maximum (1RM) using multiple formulas for strength training.

Calculate your optimal daily protein intake based on weight, activity level, and fitness goals.

Calculate your total body water percentage and water distribution using the Watson formula.

Calculate your lean body mass (LBM) - the weight of everything in your body except fat.

Calculate how many calories you burn during various activities including walking, running, and more.

Calculate your body fat percentage using the US Army method and check if you meet Army standards.