BMI Calculator - Body Mass Index

Created by Aleksandra Zając, MD and Mateusz Mucha
Reviewed by Małgorzata Koperska, MD and Jack Bowater
Based on research by
Nuttall FQ. Body Mass Index: Obesity, BMI, and Health: A Critical Review. Nutrition Today (May 2015)See 1 more source
Aune D, Sen A, Prasad M, Norat T, Janszky I, Tonstad S, Romundstad P, Vatten LJ. BMI and all cause mortality: systematic review and non-linear dose-response meta-analysis of 230 cohort studies with 3.74 million deaths among 30.3 million participants. BMJ (May 2016)
Last updated: May 18, 2022
The BMI is used by doctors and nutritionalists to determine if a person is over- or under-weight, and to what extent. It is calculated as the person's mas (in kg) divided by the square of their height (in m). This calc conveniently allows you to enter height and weight in units of your choice.
Aleksandra Zając, MD and Mateusz Mucha
Height
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Weight
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BMI
BMI Prime
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