Body Fat Percentage Calculator
Estimate your body fat percentage using the US Navy circumference method.
What is a Body Fat Calculator?
A body fat calculator estimates the percentage of your total body weight that is fat tissue. Unlike BMI, body fat percentage distinguishes between fat mass and lean mass (muscle, bone, organs). This is especially relevant for Singaporeans, as Asian populations tend to carry higher body fat at the same BMI compared to Western populations.
Enter your measurements to estimate body fat percentage
Body Fat
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Category
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Quick Reference
- • Healthy body fat range — Men: 10-20%, Women: 18-28%
- • Asians tend to have higher body fat at the same BMI vs Western populations
- • Essential fat minimum — Men: 2-5%, Women: 10-13%
- • US Navy method correlates well with DEXA scan results
Understanding Body Fat Percentage
Body fat percentage is a more accurate indicator of health than BMI alone. While BMI only considers weight and height, body fat percentage distinguishes between fat mass and lean mass (muscle, bone, organs).
The US Navy method provides a reliable estimate using simple tape measurements. It is widely used in military fitness assessments and correlates well with more expensive methods like DEXA scans.
Athletes (Men / Women)
6-13% / 14-20%
Competitive athletes and very active individuals
Fitness (Men / Women)
14-17% / 21-24%
Regular exercisers with good muscle tone
Average (Men / Women)
18-24% / 25-31%
Typical range for general population
Obese (Men / Women)
25%+ / 32%+
Increased risk of health complications
Frequently Asked Questions
How does the US Navy body fat method work?expand_more
The US Navy method estimates body fat percentage using circumference measurements. For men, it uses waist and neck measurements along with height. For women, it additionally requires hip measurement. The formula applies logarithmic calculations to these measurements to estimate the percentage of body weight that is fat.
What are the body fat percentage categories?expand_more
For men: Essential fat is 2-5%, Athletes 6-13%, Fitness 14-17%, Average 18-24%, and Obese 25%+. For women: Essential fat is 10-13%, Athletes 14-20%, Fitness 21-24%, Average 25-31%, and Obese 32%+. Women naturally carry more essential fat for reproductive functions.
How do I measure my waist, neck, and hips correctly?expand_more
Measure your waist at the narrowest point, typically at the navel level. Measure your neck just below the larynx (Adam's apple), sloping slightly downward at the front. Measure hips (women only) at the widest point of the buttocks. Use a flexible tape measure and keep it snug but not tight.
What is a healthy body fat range?expand_more
A healthy body fat range for men is typically 10-20% and for women 18-28%. However, Asian populations including Singaporeans tend to have higher body fat at the same BMI compared to Western populations, so maintaining the lower end of these ranges may be advisable for better health outcomes.
Sources
- • Health Promotion Board (hpb.gov.sg) — Body composition guidelines for Singapore adults
- • US Navy Body Composition Assessment — Circumference-based body fat estimation method
- • Ministry of Health (moh.gov.sg) — Obesity and body fat risk thresholds for Asian populations