BMI Calculator
Find your body mass index and healthy weight range in seconds — in metric or imperial units.
| Category | BMI | Weight for your height |
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BMI is a screening tool, not a diagnosis. It does not measure body fat directly and can be misleading for athletes, older adults and during pregnancy. Please talk to a doctor about your health.
Calculated in your browser — your details are never uploaded or saved.
How to use the BMI Calculator
Enter height & weight
kg/cm or lb/ft-in.
Get your BMI
With category and visual scale.
See your target
Healthy weight range for your height.
Why use our BMI Calculator?
Metric & imperial
kg/cm and lb/ft-in.
Visual scale
See where you are on the BMI chart.
Healthy range
The weight range for a healthy BMI.
Body fat estimate
Using age and sex.
Adults
Standard WHO categories for 18+.
Private
Nothing is stored.
Frequently asked questions
Everything you need to know about the BMI Calculator.
Back to the toolWhat is a healthy BMI?
For adults, 18.5 to 24.9 is considered healthy by the WHO.
Is BMI accurate?
BMI is a quick screening tool. It does not measure body fat directly and can overestimate it in muscular people.
How is BMI calculated?
Weight in kilograms divided by height in metres squared.
Is BMI different for Asians?
Some health bodies suggest lower cut-offs (23 for overweight) for Asian populations.
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