Health

BMI calculator

Calculate BMI from weight and height and classify the result as a rough orientation value.

Updated on Apr 21, 2026 Calculator, calculation path and examples on one page

Back to category: Health

Calculator

Examples

78 kg at 178 cm.

BMI: 24.6

Load this example

92 kg at 180 cm.

BMI: 28.4

Load this example

58 kg at 168 cm.

BMI: 20.5

Load this example

FAQ

Is BMI a medical diagnosis?

No. It is only a rough statistical guideline value.

Why can BMI be misleading?

Muscle mass, body type, age and individual factors are not fully taken into account.

Does BMI apply to children?

Separate age-dependent classifications apply to children and young people.

What is a normal BMI?

For adults, the range from 18.5 to under 25 is often cited as normal weight.

Can I use the BMI for quick self-monitoring?

Yes, as a rough guide. If you are unsure, a medical assessment is more helpful.

Related calculators

Calculate basal metabolic rate and total requirement according to Mifflin-St-Jeor.

Derive target calories from total requirements and desired deficit.

Calculate percentage, percentage, base value and percent change.

Sources and notes