Body Fat Calculator
Estimate your body fat percentage using multiple scientifically validated methods including US Navy measurements, BMI-based formulas, and skinfold measurements.
Body Fat Calculator FAQ
What is body fat percentage?
Body fat percentage is the proportion of fat in your body compared to everything else—muscles, bones, water, and organs. It’s a more accurate indicator of fitness than weight alone.
How does the calculator estimate my body fat?
The calculator uses measurements such as height, weight, age, gender, and body circumferences (like waist, neck, and hips) along with formulas such as the U.S. Navy Method to estimate body fat percentage.
Is this method accurate?
While the calculator provides a solid estimate, it may not be as precise as methods like DEXA scans or hydrostatic weighing. However, it’s a convenient and useful tool for tracking changes over time.
What’s a healthy body fat range?
Healthy ranges vary by age and gender. For most adult males, 10–20% is considered normal; for females, 18–28% is typical. Athletes and active individuals may have lower ranges. Always consult a healthcare provider for personal advice.
Body Fat Categories
| Category | Women | Men |
|---|---|---|
| Essential Fat | 10-13% | 2-5% |
| Athletes | 14-20% | 6-13% |
| Fitness | 21-24% | 14-17% |
| Average | 25-31% | 18-24% |
| Obese | 32%+ | 25%+ |
Calculate Your Body Fat
Enter your measurements to see your estimated body fat percentage and analysis.
Your Body Composition
Body Composition
Comparison of Methods
Navy Method
BMI Method
Skinfold
Health Analysis
Recommendations
Measurement Guide
Navy Method Measurements
- Neck: Measure just below the larynx with tape sloping downward to the front
- Waist: At the narrowest point for men, at the navel level for women
- Hip (women only): At the widest point of the hips
Skinfold Measurements
- Chest: Diagonal fold halfway between armpit and nipple (men only)
- Abdominal: Vertical fold 2cm to the right of the navel
- Thigh: Vertical fold on front of thigh midway between knee and hip
- Tricep: Vertical fold on back of arm halfway between shoulder and elbow
- Suprailiac: Diagonal fold above iliac crest (hip bone)
Tips for Accuracy
- Take measurements in the morning before eating
- Use a flexible, non-stretchable measuring tape
- For skinfolds, take 2-3 measurements at each site and average them
- Measure in the same location each time for consistency