CalcSpace.

BMI · adults aged 20+

Calculate adult BMI from weight and height for ages 20 and over. Review the formula and limitations; BMI alone does not diagnose health.

Inputs

Use the units shown

General educational estimate, not medical advice. Do not use it to diagnose a condition or determine treatment. Automatic history is disabled for health inputs; saving is optional and explicit.

RESULT
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Enter your values and select Calculate.

Formula & explanation
BMI = weight kg/(height m)²

Variables & units

Weight
kg · minimum 1, maximum 600
Height
cm · minimum 50, maximum 250
Age
years · minimum 20, maximum 120

Worked example

70 kg and 175 cm gives BMI 22.857143.

Assumptions

Adult screening measure only, not a diagnosis or individual health assessment. Not a child/teen percentile, pregnancy assessment or measure of body composition.

References

Formula version 1.0.0. JavaScript floating-point arithmetic applies. Results display up to 6 decimal places; stored values retain available precision. Use the units shown.

Calculated on your device. Automatic history is disabled for these inputs.

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