Body Fat Calculator

Use our free Body Fat Calculator to estimate your body fat percentage.

Height in cm▼
Male▼

What is Body Fat?

Body fat is the amount of fat stored in your body, which includes essential fat needed for life and stored fat used for energy. Measuring body fat gives a clearer picture of your overall health compared to weight alone because it indicates how much of your body is composed of fat versus muscle.

How the Body Fat Calculator Works

This calculator uses the U.S. Navy Body Fat Formula, which is one of the most widely accepted methods for estimating body fat percentage without expensive equipment. Simply enter your measurements, and the tool will instantly show:

  • Your body fat percentage
  • Your fitness category (e.g., Athletic, Fit, Acceptable, Obese)
  • Healthy recommended body fat ranges

Required Measurements

To get an accurate result, you’ll need the following:

  • Weight (kg)
  • Height — choose either:
    • Centimeters (cm)
    • Feet & Inches (ft-in)
  • Waist circumference (cm) — measured at the narrowest point
  • Neck circumference (cm) — measured just below the larynx
  • Age
  • Gender — male or female

Body Fat Categories

Your results will automatically show one of the following categories:

For Men

  • Essential Fat: 2%–5%
  • Athletes: 6%–13%
  • Fitness: 14%–17%
  • Acceptable: 18%–24%
  • Obese: 25%+

For Women

  • Essential Fat: 10%–13%
  • Athletes: 14%–20%
  • Fitness: 21%–24%
  • Acceptable: 25%–31%
  • Obese: 32%+

Why Use a Body Fat Calculator?

Bodyweight alone doesn’t always reflect your health. Two people with the same weight can have very different body compositions. Tracking yourbody fat percentage helps you:

  • Understand your fitness level more accurately
  • Track fat loss, not just weight loss
  • Set realistic health and fitness goals
  • Monitor changes during workout programs

Frequently Asked Questions

1. How accurate is this Body Fat Calculator?

While not as precise as DEXA scans, the U.S. Navy formula is considered one of the most accurate non-invasive methods available online.

2. Is it safe to have low body fat?

Body fat below essential levels can be dangerous. Always stay within healthy ranges based on your age and gender.

3. Why do men and women have different ranges?

Women naturally require more body fat for hormonal balance and reproduction, so their healthy ranges are higher.

Start Tracking Your Body Composition Today

Use the Body Fat Calculator regularly to monitor changes in your fitness journey. Whether you're building muscle, losing fat, or improving overall health, this tool provides valuable insight.