Get fast, accurate body-fat and health metrics to guide your fitness journey

Body-Fat & Health Metrics Estimator (Embeddable)

Body-Fat & Health Metrics Estimator

Navy method when measurements are provided — otherwise a BMI-based estimate. Copyable, embeddable, and privacy-friendly (runs client-side).

Units Gender

Age Activity level

Height

If imperial: enter total inches (e.g., 5'9" = 69). Metric: cm.

Weight

Imperial: pounds. Metric: kilograms.

Neck circumference

Measure just below Adam's apple (men) / sloping part (women).

Waist circumference

At the navel / belly button (or narrowest point) — be consistent.

Hip circumference (women only)

Measure at widest part of hips / buttocks. Not required for men.

Results computed client-side — no data leaves your browser.