About the BMI Calculator tool
Enter your height and weight in US or metric units to get your BMI, the standard adult category it falls into, and the weight range considered healthy for your height.
How to use it
- Choose US or metric units.
- Enter your height and weight.
- Read your BMI, category and healthy range.
Frequently asked questions
What BMI is considered healthy?
For adults, 18.5 to 24.9. BMI is a screening tool only — it doesn’t distinguish muscle from fat, so ask a doctor for a full picture.