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BMI Calculator – Body Mass Index Calculator Free
★ 4.8
(217 votes)Calculate your BMI with metric or imperial units. Visual gauge, WHO categories, healthy weight range, BMI Prime, and limitations explained.
BMI is a screening tool, not a diagnostic measure. It does not account for muscle mass, bone density, age, sex, or ethnicity. Always consult a healthcare professional for medical advice.
Enter Your Measurements
70 kg
kg
cm
Category
Normal Weight
WHO range: 18.5 – 24.9
Your BMI is in the healthy range. Maintain a balanced diet and regular physical activity.
Healthy weight for your height
53.5 kg – 72.0 kg
Based on BMI 18.5–24.9
24.2
BMI
kg/m²
0.97
BMI Prime
ratio/25
14.2
Ponderal Index
kg/m³
1.82
Body Surface
m² (BSA)
All calculations done in your browser — no health data sent anywhere