Health

BMI Calculator

BMI Calculator: general adult estimate with transparent methodology.

Inputs

Body weight in kilograms

Height in centimetres

Results

BMI

22.86

Reference weight at BMI 18.5 (kg)

56.66

Reference weight at BMI 24.9 (kg)

76.26

Overview

BMI is a screening measure that relates an adult’s weight to height. It can help describe weight categories at a population or screening level, but it does not diagnose a health condition and does not directly measure body fat or overall health. For adults, interpretation should be considered alongside medical history, health behaviors, physical findings, and other relevant information.

Formula

BMI = weight (kg) / height² (m).

Example

The default values provide a worked estimate that updates instantly when inputs change.

Methodology

The calculation divides weight in kilograms by height in metres squared. Calcify reports the numeric BMI as an estimate for adults and does not turn the result into a diagnosis or treatment recommendation. CDC guidance describes BMI as a screening measure and recommends considering it with other health information. The calculator uses only the values entered here; it does not access medical records or personal health datasets.

Trust & Transparency

Author:Calcify Editorial Team
Reviewed by:Calcify Editorial Review
Last verified:
Last reviewed:

General information only — not financial advice. Consult a qualified financial advisor for personalized guidance.

Frequently Asked Questions

What does BMI Calculator calculate?
It calculates the displayed result from the inputs you provide using the methodology explained on this page.
How should I use the result?
Use the result as an estimate or mathematical reference and review the assumptions shown on this page before making decisions.
What happens when I change an input?
The calculator updates the result immediately so you can compare different scenarios.
Does Calcify store my calculator inputs?
The calculation runs from the values entered on the page; this calculator does not require an account or personal profile.
BMI22.86