Health
BMI Calculator
Check your body mass index and weight category in metric or imperial.
kg
cm
Body mass index
Your BMI
22.9
Healthy
1218.5253040
Weight used70.0 kg
Height used175.0 cm
For estimation purposes only — not financial, medical, or professional advice.
How to use this calculator
- 1Choose metric (kg and cm) or imperial (lb, feet and inches).
- 2Enter your current weight and height.
- 3Read your BMI value and where it sits on the category scale.
How it's calculated
BMI = weight in kilograms divided by height in metres squared.
Imperial inputs are converted first: pounds x 0.45359237 gives kilograms, and total inches x 2.54 gives centimetres.
Categories follow WHO adult thresholds: under 18.5 underweight, 18.5 to 24.9 healthy, 25 to 29.9 overweight, and 30 or above obese.
BMI Calculator FAQs
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