How to measure
Measure your neck and waist (and hip for women) relaxed, in centimetres. The calculator applies the US Navy formula to estimate your body fat.
Body Fat Calculator Malaysia
Estimate your body fat percentage with the US Navy method from a few tape-measure readings.
Rates basis: Estimate
Your measurements
Body fat
17.8%
Fitness
Body fat: 17.8%
- Category
- Fitness
- Fat mass
- 12.46 kg
- Lean mass
- 57.54 kg
Fitness tips for Fitness body fat
- You are in a healthy fitness range with good aesthetics and performance.
- Maintain this with consistent exercise 4-5 days weekly (mix cardio + strength).
- Nutrition: balance macros, eat whole foods 80% of the time.
- Progressive overload in strength training prevents plateaus.
- Flexibility and mobility work (yoga, stretching) improves longevity.
- Find activities you enjoy; consistency beats perfection.
US Navy method estimate. Measure neck, waist (and hip) relaxed, in cm. Results vary based on measurement accuracy.
Example scenarios
Man: waist 85, neck 38, 175 cm
US Navy method — within the average-to-fit range.
≈ 18% body fat
Woman: waist 75, hip 95, neck 34, 162 cm
A typical, healthy range for women.
≈ 27% body fat
Understanding the numbers
How the figures above are worked out — the rules, rates and reasoning behind every line.
Estimates only. Results are for planning purposes and may differ from official figures. Confirm against the relevant authority before making financial decisions.
Why body fat matters
Body fat percentage is a better health signal than weight alone, because it separates fat from muscle and bone.
The US Navy method estimates it from your height and a few circumference measurements.
Frequently asked questions
Is the US Navy method accurate?
It's a reasonable estimate for most people, within a few percent of more precise methods. Consistent measuring matters more than absolute precision.
What is a healthy body fat percentage?
Roughly 14–24% for men and 21–31% for women is considered the average-to-fitness range, though it varies with age and goals.
Formula governance
- Formula version
- 2026.1
- Effective date
- 1 Jan 2026
- Government source
- MOH Malaysia · WHO
- Last updated
- 3 Oct 2026
Frequently Asked Questions
What measurement method does this calculator use?▼
This uses the US Navy method, which estimates body fat % using neck, waist, and hip (females only) circumference measurements. It's free, non-invasive, and reasonably accurate (±3%) for most people.
How do I measure my neck correctly?▼
Use a soft measuring tape around the narrowest part of the neck, just below the larynx (Adam's apple). Keep tape snug but not tight. Measure while standing, looking straight ahead. Record to nearest 0.1 cm.
How do I measure my waist correctly?▼
Measure horizontally around the smallest part of your abdomen, typically at the navel level. Keep the tape parallel to the ground, snug (but not compressing skin), and measure after exhaling. Record to nearest 0.1 cm.
What's a healthy body fat percentage?▼
Males: Essential 2-5%, Athletes 6-13%, Fitness 14-17%, Average 18-24%, High 25%+. Females: Essential 10-13%, Athletes 14-20%, Fitness 21-24%, Average 25-31%, High 32%+. These are general guidelines; health is individual.
How does body fat relate to BMI?▼
BMI uses height/weight; body fat % accounts for muscle mass. A muscular person may have high BMI but low body fat. Conversely, someone at 'normal' BMI may have high body fat if sedentary. Use both metrics for complete picture.
How often should I measure body fat?▼
Measure every 2-4 weeks if tracking progress. Body fat changes slowly (0.5-1% per month with diet/exercise). Daily fluctuations aren't meaningful; focus on long-term trends.