Fitness Calculators

Free tools to help you track your fitness goals. No sign-up required.

TDEE Calculator

Calculate your Total Daily Energy Expenditure to find out how many calories you burn each day. Uses Mifflin-St Jeor, Harris-Benedict, and Katch-McArdle formulas.

CaloriesBMRMacros

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BMI Calculator

Calculate your Body Mass Index, see your BMI category, healthy weight range, BMI Prime, and Ponderal Index.

WeightHealthWHO Standards

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Army Fitness Test (AFT) Calculator

Calculate your AFT score across all 5 events with the complete official scoring tables. Effective June 1, 2025.

MilitaryScoring Tables2025

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Take Your Fitness Further

Track your nutrition, crush fitness challenges, and compete with friends on the JustLame app.

Download JustLame