Free BMI Calculator — Metric and Imperial
Enter your height and weight to see your BMI and healthy weight range.
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How to do it
- 1Choose your settings
Fill in the details or pick the options you need.
- 2See the result
The preview updates right away as you change things.
- 3Download or save it
Save the result to your device. Nothing is sent to or stored on a server.
About this tool
Check your body mass index in seconds. Use metric (cm and kg) or imperial (feet, inches and pounds). You also see the healthy weight range for your height, using the World Health Organization groups: under 18.5, 18.5 to 24.9, 25 to 29.9 and 30 or more. BMI is a simple screening number, not a diagnosis.
Frequently asked questions
What is a healthy BMI?
For most adults a BMI from 18.5 to 24.9 is called healthy by the World Health Organization.
Is BMI accurate for everyone?
No. Muscle, age, sex and body shape change what the number means. Talk to a doctor about your health.