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
ft
in
Weight
lb
BMI
BMI Prime
Advanced features
Are you an athlete?
No
Sex
Female
Age
Percentile
People also viewed…

Loan calculator

This calculation uses well-known equations to find how large a loan is affordable, based on a maximum affordable monthly repayment, nominal interest rate, and payment schedule. It also finds how much is repaid in total over the whole period.
Loan Calculator

NNT

Standard equations are used to calculate NNT and other probabilities from the rsults of a medical study.
NNT Calculator
main background