BMI Calculator
BMI mapped against Western and WHO Asian thresholds.
Calculate your Body Mass Index from height and weight and see it mapped against both the standard Western categories and the WHO Asian thresholds. Works in metric or imperial units. It is free, runs entirely in your browser, needs no signup, and nothing you enter is uploaded.
How to use BMI Calculator
- Choose metric or imperial units.
- Enter your height and weight.
- Click Calculate to see your BMI value.
- Compare your result against the Western and WHO Asian category bands.
Frequently asked
Is the BMI calculator free?
Yes. It is free with no account required.
Is my data uploaded?
No. The calculation runs in your browser and nothing is sent to a server.
What is the difference between Western and WHO Asian thresholds?
The WHO Asian thresholds flag overweight and obesity at lower BMI values, reflecting health risk patterns in Asian populations.
Does BMI work for everyone?
BMI is a general screening number and does not distinguish muscle from fat, so it can be misleading for athletes, pregnant people, children and the elderly.
Is this medical advice?
No. This tool gives an informational estimate only and is not medical advice. Talk to a healthcare professional about your health.
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