Free online calculator · India

BMI Calculator

Calculate body mass index from height and weight. BMI is a screening measure, not a diagnosis.

What this calculator does

This tool calculates BMI from entered height and weight. BMI cannot determine health by itself. It does not capture all differences in growth or body composition. Children and teenagers need age- and sex-specific growth-chart interpretation by a qualified healthcare professional; adult cut-offs should not be applied.

How to use it

Choose units
enter height
enter weight
treat the result as general information only.

Calculate now

Formula and calculation method

BMI = weight in kilograms ÷ (height in metres × height in metres).

Worked example

At 1.70 metres and 65 kilograms, BMI is approximately 22.5. This number alone does not establish health status.

Important information

BMI cannot diagnose a condition. For children and teenagers, consult a qualified healthcare professional for age- and sex-specific interpretation.

Frequently asked questions

How accurate is this calculator?

It provides an estimate based on the values and assumptions entered. Verify important decisions with the relevant provider or a qualified professional.

Does this replace professional advice?

No. It is an informational tool and does not replace tax, legal, accounting, lending, investment or medical advice.

More free calculators

Explore all 16 browser-based tools on Friendly Calculator.

Browse all calculators About

Results are estimates based on entered values and assumptions. They are not professional advice. Verify important decisions with the relevant provider or a qualified professional.