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BMI Calculator

Calculate your body mass index using height and weight, then view a simple BMI category for general awareness.

Height and weight BMI category Formula explained
Free calculator

Simple, fast and clear

Enter your values, review the result, and read the formula used so the calculation is easy to understand.

BMI Calculator

Use the fields below to calculate your result instantly.

kg
cm
Your BMI0
Category-

What is BMI?

BMI is a simple height-to-weight screening number. It can help adults understand whether their weight is low, normal, high or very high for their height.

Formula used

BMI = weight / height squared. Weight is entered in kilograms and height is converted from centimeters to meters before calculation.

Important note

BMI is not a diagnosis and does not directly measure body fat, muscle mass or health risk. Use it as a quick screening estimate only.