BMI Calculator
Calculate adult Body Mass Index from height and weight and see the matching WHO category range.
Your measurements
Enter height and weight to calculate BMI.
Your BMI
22.9kg/m²
Normal
BMI Prime
0.92
Ponderal Index
13.1
Your BMI
22.9kg/m²
Normal
BMI scale
WHO adult categories
Estimate only — not medical advice
BMI is a screening tool and does not measure body fat directly. It may not be accurate for athletes, older adults, or certain body types.
Live BMI
22.9
Normal
Prime: 0.92
How it works
BMI is calculated from height and weight using the standard adult formula, then compared with WHO categories.
It is a screening tool, not a complete health assessment—athletes and some body types can fall outside expected ranges.
Frequently asked questions
- Is BMI accurate for athletes?
- Often less so. Higher muscle mass can raise BMI without excess fat. Pair BMI with other measures when possible.
Related calculators
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- Calorie CalculatorEstimate maintenance calories from BMR and activity, then plan deficit or surplus targets for weight goals.
- TDEE CalculatorEstimate total daily energy expenditure by combining a BMR formula with your typical activity multiplier.
- Body Fat CalculatorApproximate body fat percentage from common measurement formulas and visualize lean vs fat mass.