Body Fat Percentage Calculator

Calculate your body fat percentage using the U.S. Navy Body Fat Calculator method.

Body Fat Percentage Calculator

Our Body Fat Percentage Calculator uses the U.S. Navy Body Fat Calculator method to estimate your body fat percentage. This method is widely used and provides a reasonably accurate estimate based on simple body measurements.

What is Body Fat Percentage?

Body fat percentage is the proportion of fat in your body compared to your total body weight. It's a more accurate indicator of fitness than body weight alone, as it distinguishes between fat mass and lean body mass.

How to Use Our Calculator

  1. Select your gender
  2. Enter your age in years
  3. Measure and enter your height in centimeters
  4. Measure and enter your weight in kilograms
  5. Measure and enter your neck circumference in centimeters
  6. Measure and enter your waist circumference in centimeters
  7. For females, also measure and enter your hip circumference in centimeters
  8. Click "Calculate" to see your results

Understanding Your Results

The calculator provides three key measurements:

Body Fat Percentage

This is the percentage of your total body weight that is fat. A healthy body fat percentage varies by gender and age:

  • For men: 6-24% is considered healthy
  • For women: 16-30% is considered healthy

Lean Body Mass

This is the weight of everything in your body except fat, including muscles, bones, organs, and water.

Fat Mass

This is the actual weight of the fat in your body.

Tips for Accurate Measurements

  1. Use a flexible measuring tape
  2. Measure at the same time of day
  3. Take measurements in the morning before eating
  4. Measure at the same point each time
  5. Don't pull the tape too tight or leave it too loose

Important Considerations

  1. The U.S. Navy method provides an estimate and may not be as accurate as more sophisticated methods like DEXA scans or hydrostatic weighing.
  2. Results can vary based on:

    • Measurement technique
    • Time of day
    • Hydration level
    • Recent exercise
    • Body composition
  3. This calculator is not suitable for:

    • Children under 18
    • Pregnant women
    • Individuals with certain medical conditions

Maintaining a Healthy Body Fat Percentage

  1. Regular exercise
  2. Balanced diet
  3. Adequate sleep
  4. Stress management
  5. Consistent measurement tracking

Remember that while this calculator provides a useful estimate, it's always best to consult with a healthcare professional for a comprehensive assessment of your body composition.