01 / 07 Free fitness calculator

BMI
Calculator

Estimate your body mass index and see the healthy weight range for your height.

Enter your details
cm
Used to adjust the estimate for body size.
kg
Your current body weight.

Calculations happen on your device. Nothing is uploaded.

Result01

Enter your details above. Your result will appear here and be saved privately in this browser.

Understand your result

What each number
actually means.

BMI = weight (kg) ÷ height² (m). It is a screening measure, not a direct measurement of body fat.

01

Your BMI

A height-adjusted weight score commonly used to screen broad weight categories in adults.

02

Healthy range

The weight interval that corresponds to a BMI from 18.5 to 24.9 at the height you entered.

03

Use with context

Muscle mass, pregnancy, age, and body composition can make BMI less representative for an individual.

Browser history

Your latest
calculations.

Stored locally on this device. Clear it whenever you want.

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Good to know

A useful estimate.
Not a diagnosis.

Use the result as a planning baseline, track your real-world response, and adjust over time. Individual needs can vary.