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BMI Calculator

A quick reference point, not a diagnosis.

Your inputs stay on your device

Body mass index

live result
kg
cm
Your BMI
23.0
Within the usual range

BMI is a general screening measure and does not account for every body type or health factor.

Useful context

How it works

Use the calculator first, then scan the details below when you want more context about the inputs, result, or assumptions.

Method

Body mass index divides weight by height squared after converting the inputs to compatible metric units.

How to use it

Enter height and weight, then review the BMI value and its reference category.

Understand the result

BMI is a height-to-weight ratio, not a diagnosis or a complete measure of health.

Example

A person weighing 70 kg at 1.75 m has a BMI of about 22.9.

Notes

BMI categories are general reference ranges and may not suit every body, age, or medical context.

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