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Body Fat Calculator

Estimate your body fat percentage using simple body measurements — instant results, no sign-up.

Quick Answer

Body Fat Calculator lets you: Estimate your body fat percentage using simple body measurements — instant results, no sign-up. To start, choose male or female — the formula differs slightly.

Loading tool…

How to use this tool

  1. 1

    Select your sex

    Choose male or female — the formula differs slightly.

  2. 2

    Enter your measurements

    Input height, neck, waist (and hip for female) in inches.

  3. 3

    View your estimate

    See your estimated body fat percentage and category.

Frequently Asked Questions

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BMI Calculator

Calculate your Body Mass Index in metric or imperial units — instant results with a category breakdown.

Age Calculator

Calculate your exact age in years, months, and days from your date of birth — instant results, no sign-up.

Estimated body fat

17.5%

Fitness

Estimated using the U.S. Navy circumference method — for reference only, not a medical measurement.