BMI Calculator

Calculate Body Mass Index from weight and height, view category bands, and see an estimated healthy weight range for your height.

Calculate Your BMI

Helper: use metric units only. This tool is for screening, not diagnosis.

Typical adult range: 20 to 300 kg.

Typical adult range: 100 to 250 cm.

BMI

22.9

Category

Normal weight

Healthy weight range

56.7 - 76.3 kg

Enter weight and height, then calculate to refresh BMI, category, and healthy range.

Formula

BMI = weight (kg) / [height (m)]2

How it works

The calculator converts centimeters to meters, computes BMI, then classifies the result using common adult BMI bands: underweight (<18.5), normal (18.5-24.9), overweight (25.0-29.9), and obesity (30+).

It also estimates a healthy weight span by applying BMI 18.5 and 24.9 to your current height.

Source: World Health Organization BMI classification guidance.

Disclaimer: BMI is a screening metric and does not replace clinical evaluation.