Body Fat Percentage Calculator – Measure Your Fitness

Enter your height, weight, age, and gender to instantly estimate your body fat percentage and see where you fall across standard fitness categories.

What Is Body Fat Percentage?

Body Fat Percentage (BFP) is the proportion of your total body weight that is made up of fat. Unlike BMI, which only uses height and weight, body fat percentage gives a more detailed picture of your body composition — distinguishing between fat mass and lean mass such as muscle, bone, and water.

Knowing your body fat percentage helps you understand your fitness level more accurately and set more meaningful health and training goals.

How BFP Is Calculated

This calculator uses the Boer formula, which estimates body fat percentage based on height, weight, age, and gender. It supports both metric (cm, kg) and imperial (inches, lbs) units, converting automatically depending on your selection.

Body Fat Percentage Categories

For Men Essential Fat: 2–5% | Athletes: 6–13% | Fitness: 14–17% | Average: 18–24% | Obese: 25% and above

For Women Essential Fat: 10–13% | Athletes: 14–20% | Fitness: 21–24% | Average: 25–31% | Obese: 32% and above

These ranges reflect gender-specific differences in body composition and are aligned with widely used fitness and health standards.

How to Use This Calculator

1. Select your unit system — choose Metric (cm, kg) or Imperial (inches, lbs) from the dropdown menu.
2. Enter your height — type your height in centimetres or inches (e.g., 170 cm or 67 inches).
3. Enter your weight — type your weight in kilograms or pounds (e.g., 70 kg or 154 lbs).
4. Enter your age — type your current age in years (e.g., 30).
5. Select your gender — choose Male or Female from the dropdown.
6. Click “Calculate” — your body fat percentage and category are displayed instantly.
7. Review your results — see your BFP score, fitness category, and a full gender-specific body fat range table for reference.

What the Results Include

Body Fat Percentage Score Your estimated BFP as a percentage, calculated using the Boer formula based on your inputs.

Fitness Category Your result is classified into one of five categories — Essential Fat, Athletes, Fitness, Average, or Obese — based on your gender and calculated BFP.

Full Body Fat Range Table A complete reference table showing all BFP categories and their percentage ranges for your gender, displayed automatically after every calculation.

Why Use This Calculator?

Uses the Boer Formula A well-established method for estimating body fat from basic body measurements — more informative than BMI alone for assessing fitness and health.

Gender-Specific Results Body fat percentage norms differ significantly between men and women. This calculator applies the correct ranges for your gender so your results are meaningful and accurate.

Metric & Imperial Support Enter measurements in whichever unit system you prefer. The calculator handles the conversion automatically.

Decimal Input Supported Enter precise values like 170.5 cm or 70.2 kg for more accurate results without having to round.

Free & Instant No registration, no payment. Enter your details and get your results in seconds.

Important Note

The BFP figure produced by this calculator is an estimate based on a mathematical formula, not a direct measurement of body fat. For a clinical-grade assessment, methods such as DEXA scanning, hydrostatic weighing, or skinfold measurement by a trained professional are more precise. Use this tool as a general fitness indicator and consult a healthcare professional if you have specific health concerns.