Health reference

BMI Calculator

Estimate body mass index from height and weight. This is a general reference, not a diagnosis or medical recommendation.

22.5 Normal range

Healthy range assessment

Your BMI is in the commonly used healthy range for adults. Keep the result in context with fitness, body composition, age, and medical history.

How BMI is calculated

BMI equals weight in kilograms divided by height in meters squared. The result is commonly used as a broad adult screening measure.

Use with context

BMI can be less informative for athletes, older adults, children, pregnant people, and anyone whose body composition differs from population averages.

Healthy habits

The result can prompt a broader review of sleep, activity, nutrition, medical history, and other measurements rather than a single-number conclusion.

BMI FAQ

Is BMI a medical diagnosis?

No. BMI is a screening estimate. A qualified health professional can interpret it with other health indicators.

Why does height affect the result so much?

The formula divides weight by height squared, so small height differences can noticeably change the estimate.

Can children use this calculator?

Children and teenagers usually need age- and sex-specific BMI percentiles. This page is written for general adult reference.