Body Composition Calculators

Understand body fat, shape, and healthy weight ranges with science-backed metrics.

BMI Calculator
Body Composition

BMI Calculator

Calculate your Body Mass Index to assess your weight relative to height.

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Body Fat Calculator
Body Composition

Body Fat Calculator

Estimate body fat percentage using Navy, skinfold, or BMI methods.

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Body Frame Size Calculator
Body Composition

Body Frame Size Calculator

Determine body frame size using height and wrist circumference.

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Army Body Fat Calculator
Body Composition

Army Body Fat Calculator

Estimate body fat using the U.S. Army circumference method.

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ABSI Calculator
Body Composition

ABSI Calculator

Assess health risk using A Body Shape Index.

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Waist-to-Hip Ratio Calculator
Body Composition

Waist-to-Hip Ratio Calculator

Evaluate body fat distribution and risk with WHR.

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Waist-to-Height Ratio Calculator
Body Composition

Waist-to-Height Ratio Calculator

Assess central body fat with a waist-to-height ratio.

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Ideal Weight Calculator
Body Composition

Ideal Weight Calculator

Estimate healthy weight ranges using common formulas.

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Adjusted Body Weight Calculator
Body Composition

Adjusted Body Weight Calculator

Estimate adjusted body weight using clinical formulas.

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Body Surface Area Calculator
Body Composition

Body Surface Area Calculator

Estimate body surface area from height and weight.

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Lean Body Mass Calculator
Body Composition

Lean Body Mass Calculator

Estimate lean body mass based on height and weight.

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FFMI Calculator
Body Composition

FFMI Calculator

Calculate your Fat-Free Mass Index to assess muscular development relative to your height.

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Body Recomposition Calculator
Body Composition

Body Recomposition Calculator

Get calorie and macro targets to build muscle and lose fat simultaneously.

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Body Shape Calculator
Body Composition

Body Shape Calculator

Classify your body shape (apple, pear, hourglass, rectangle) and somatotype with personalized fitness tips.

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