Body Fat Calculator – Estimate Body Fat %
Estimate body fat percentage using the US Navy tape measurement method.
❤️ Health📐
Height (in)
Waist (in)
Neck (in)
Hip (in, women only)
Sex
Please enter valid values.
Formula & Reference
| Variable | Formula | Units |
|---|---|---|
| Body Fat Calculator – Estimate Body Fat % | result |
Step-by-Step Examples
Example 1
Male, 70in, 34in waist, 15in neck
- Body fat: ~15% | Fitness category
✓ ~15%
Example 2
Female, 65in, 30in waist, 14in neck, 38in hip
- Body fat: ~22% | Fitness category
✓ ~22%
Example 3
High body fat example
- 40in waist, 14in neck, 70in height | ~28% | Average-High
✓ ~28%
Real-World Applications
Health Trackers
Track body composition changes.
Gym-Goers
Monitor fat loss progress.
Trainers
Assess client body composition.
Clinicians
Quick body fat estimate.
Common Mistakes to Avoid
⚠️
Navy method has error
±3-4% error. DEXA scan more accurate.
⚠️
Weight alone is misleading
Body fat % is better than scale weight for tracking progress.
Frequently Asked Questions
Healthy ranges? ▾
Men: athletic 6-13%, fitness 14-17%, average 18-24%. Women: athletic 14-20%, fitness 21-24%, average 25-31%.
How to reduce body fat? ▾
Caloric deficit, resistance training, sufficient protein, adequate sleep.
DEXA for accuracy? ▾
Most accurate method. Available at sports clinics for $50-150.