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Body Fat Calculator

Estimate your body fat percentage accurately using multiple scientific methods

Select your preferred unit system
35 years
US Navy method uses height, neck and waist measurements for accurate body fat estimation.
Measurement Tips

For accurate results, measure at the narrowest part of your neck and at your navel for waist. Keep the tape measure parallel to the floor.

Your Body Fat Percentage
18.2%
FIT

Healthy range for your age and gender

Body Composition Analysis
13.7 kg
Fat Mass
61.3 kg
Lean Mass
Body Fat Categories
Category Comparison
Your Result
18.2%
Fit Category
Essential Fat
2-5%
Men: 2-5% | Women: 10-13%
Athletes
6-13%
Men: 6-13% | Women: 14-20%
Average
18-25%
Men: 18-24% | Women: 25-31%
All Calculators
Tip

Use the search bar above to quickly find the calculator you need.

Track Your Progress

Monitor your body fat percentage over time with our advanced tracking tools.

Health Tip

Maintaining body fat between 10-20% for men and 18-28% for women is associated with optimal health and reduced risk of chronic diseases.

Understanding Body Fat Percentage

What is Body Fat Percentage?

Body fat percentage is the total mass of fat divided by total body mass, multiplied by 100. Unlike BMI, body fat percentage distinguishes between fat mass and lean body mass (muscle, bones, organs), providing a more accurate assessment of health and fitness.

Calculation Methods Explained
US Navy Method

Uses height, neck, waist (and hip for women) circumference measurements. Most accurate for general population.

BMI Method

Estimates body fat using height and weight through the Deurenberg formula. Quick but less accurate for muscular individuals.

Skinfold Method

Uses caliper measurements at specific body sites. Requires skinfold calipers for accurate measurement.

Body Fat Categories
  • Essential Fat: 2-5% (men) / 10-13% (women) - Necessary for bodily functions
  • Athletes: 6-13% (men) / 14-20% (women) - Very lean, athletic individuals
  • Fit: 14-17% (men) / 21-24% (women) - Healthy and physically active
  • Average: 18-24% (men) / 25-31% (women) - Typical range for general population
  • Overfat: 25-30% (men) / 32-36% (women) - Above average, health risks increase
  • Obese: 30%+ (men) / 37%+ (women) - High health risk, medical consultation recommended
Health Recommendations
Optimal Health Ranges

For optimal health and reduced disease risk:

  • Men: 10-20% body fat
  • Women: 18-28% body fat
When to Seek Help

Consult a healthcare professional if your body fat percentage falls in the obese category or if you have concerns about your health.

Frequently Asked Questions

How accurate is this calculator?

This calculator provides estimates based on scientific formulas. The US Navy method is generally considered the most accurate of the three methods presented, with accuracy within 3-4% of professional measurements when measurements are taken correctly. For precise measurements, consult a healthcare professional.

How should I take my measurements?

For accurate results:

  • Height: Stand straight against a wall, without shoes
  • Neck: Measure at the smallest circumference, below the Adam's apple
  • Waist: Measure at the navel level, without sucking in
  • Hips (women): Measure at the widest part
  • Use a flexible measuring tape and keep it parallel to the floor
What's the difference between body fat and BMI?

BMI (Body Mass Index) only considers height and weight, while body fat percentage measures the actual proportion of fat in your body. BMI can misclassify muscular individuals as overweight, while body fat percentage provides a more accurate assessment of body composition and health risks.

Why are there different ranges for men and women?

Women naturally have higher essential body fat percentages than men due to biological differences including reproductive functions, breast tissue, and hormonal variations. Women require more fat for normal physiological functioning, including hormone production and childbearing.

How can I reduce my body fat percentage?

Healthy body fat reduction involves:

  • Balanced Diet: Calorie deficit with adequate protein
  • Strength Training: Builds muscle, increases metabolism
  • Cardiovascular Exercise: Burns calories and fat
  • Adequate Sleep: 7-9 hours per night for hormonal balance
  • Stress Management: High cortisol can increase abdominal fat

Always consult with a healthcare professional before starting any new fitness or diet program.