BMI Calculator

Calculate your Body Mass Index instantly

cm
ft
in
kg
Your BMI
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--
BMI Scale
15 18.5 25 30 35 40 45
Underweight
Normal
Overweight
Obese I
Obese II
Obese III
Category --
Height --
Weight --
Unit System --
BMI is a screening tool and does not diagnose body fatness or health. Consult a healthcare provider for medical advice.

Ideal Weight Range

PRO
Minimum --
to
Maximum --

Weight range for a Normal BMI (18.5 - 24.9) at your height

LOCKED Ideal weight range is Pro-only and currently paused. New paid-plan purchases are paused; the free calculator remains available.

Body Fat Estimate

PRO
years
Estimated Body Fat --

Estimate based on the Deurenberg formula: (1.20 x BMI) + (0.23 x age) - (10.8 x sex factor) - 5.4. This is an estimate, not a clinical measurement.

Deurenberg formula is designed for adults. Results for minors may be less accurate.
LOCKED Body fat estimates are Pro-only and currently paused. New paid-plan purchases are paused; the free calculator remains available.

BMI History

PRO
No BMI history yet. Calculate your BMI to start tracking.
LOCKED BMI history tracking is Pro-only and currently paused. New paid-plan purchases are paused; the free calculator remains available.
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Help & Guides

How to Use This Tool FAQ