Body Fat Percentage Calculator
Accurate Fat Estimation
Calculate your body fat percentage using the scientifically-validated U.S. Navy Method. This calculator uses body measurements to estimate the percentage of your body weight that consists of fat tissue, providing valuable insights into your body composition and health.
Discover your body composition and track your fitness progress accurately
Adjust the sliders to calculate body fat percentage
Neck and waist measurements required
Why the U.S. Navy Method?
The U.S. Navy Method is a scientifically validated approach that uses body circumference measurements to estimate body fat percentage. It's more accurate than BMI for assessing body composition and doesn't require expensive equipment.
For Men
Measurements needed: Height, neck circumference, waist circumference
For Women
Measurements needed: Height, neck circumference, waist circumference, hip circumference
How to Take Accurate Measurements
Neck
Measure around the neck just below the larynx (Adam's apple). Keep the tape measure level and snug but not tight.
Waist
For men: Measure at the narrowest point, usually just above the navel. For women: Measure at the natural waistline, the narrowest part of the torso.
Hip (Women Only)
Measure around the widest part of the hips, usually at the level of the greater trochanter (the bony prominence on the side of the hip).
Tips
- Take measurements in the morning
- Use a flexible measuring tape
- Keep tape level and parallel to floor
- Don't hold breath while measuring
Body fat percentage is the proportion of your total body weight that consists of fat tissue. Unlike BMI, which only considers height and weight, body fat percentage provides a more accurate assessment of your body composition and health status.
Understanding your body fat percentage helps you make informed decisions about your fitness goals, whether you're looking to lose fat, gain muscle, or maintain your current physique.
Body Fat Categories - Men
Body Fat Categories - Women
Why Body Fat Matters
- • More accurate than BMI for health assessment
- • Helps track fitness progress effectively
- • Indicates metabolic health status
- • Guides nutrition and exercise planning
- • Monitors changes in body composition
Limitations to Consider
- • Estimates may vary ±3-4% from actual values
- • Less accurate for very lean or obese individuals
- • Measurement technique affects accuracy
- • Hydration levels can influence results
- • Best used for tracking trends over time
Important Note
Body fat percentage calculations provide estimates and should be used as a general guide. For precise body composition analysis, consider professional methods like DEXA scans or hydrostatic weighing. Always consult healthcare professionals for personalized health advice.
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