FreeTools Hub / BMI Calculator
FREE ONLINE HEALTH TOOL

BMI Calculator

Estimate body mass index from height and weight.

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CALCULATOR

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Worked example

For a weight of 70 kg and height of 1.75 m, BMI is 70 ÷ (1.75 × 1.75), which is about 22.9. BMI is a screening measure and does not directly measure body fat or diagnose health conditions.

Assumptions to check

Interpret BMI with context such as age, pregnancy, muscle mass and medical history. Consult a qualified healthcare professional for personal health advice.

Important limitation

BMI is a screening measure rather than medical advice. For health decisions, discuss your circumstances with a qualified healthcare professional.

Quick question

Is BMI a diagnosis?

No. BMI is a screening measure and should not be treated as a diagnosis or as a complete assessment of health.

Use the result as a starting point

Check the inputs and assumptions before relying on the result. FreeTools Hub is designed for general calculations and education; it does not replace professional financial, tax, legal or medical advice.