BMI Calculator

Calculate your Body Mass Index from height and weight and see which category you fall into.

BMI (metric)

Height (cm)

Weight (kg)

Enter your height in centimeters and weight in kilograms. BMI is weight divided by height squared — a rough screening tool, not a diagnosis.

BMI = weight (kg) ÷ height (m)²

Example: 70 kg at 1.75 m → BMI = 70 ÷ 3.06 = 22.9 (normal).

Is BMI accurate?

It is a quick screening tool that does not distinguish muscle from fat, so athletes can read high. Use it with other health indicators.

What is a healthy BMI?

18.5–24.9 for most adults, though ranges vary slightly by age and population.

How do I convert pounds/feet to metric?

1 kg = 2.205 lb; 1 inch = 2.54 cm. Alternatively search for an imperial BMI calculator.