EEasynivo
Free online tool

BMI Calculator

Calculate adult body mass index using metric or US customary measurements.

Enter your values

BMI

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Enter the values and choose Calculate.

BMI—
Result—

How to use this tool

Use height and weight to get a quick BMI screening estimate and category.

  1. Enter your values
  2. Calculate
  3. Copy · Share

Formula and method

BMI = kg ÷ m² · Imperial BMI = 703 × lb ÷ in²

Worked example

70 kg and 175 cm produces a BMI near 22.9, within the healthy screening range.

Frequently asked questions

Is this tool free and private?

Yes. It is free to use without an account, and the calculation runs in your browser.

BMI Calculator

Calculate adult body mass index using metric or US customary measurements.

Transparency

Sources & methodology

Calculation method
BMI = kg ÷ m² · Imperial BMI = 703 × lb ÷ in²
Evidence basis
Published screening or body-composition method; not a diagnosis.
Applies to
No statutory reference year. Results use the values and assumptions entered now.
Last reviewed
Limitations
Individual circumstances can make the estimate unsuitable. Do not use it to diagnose or replace professional care.

Sources

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Content basis and verification

· Calculations run in your browser. Check the formula and assumptions on this page, and confirm important financial, tax, medical or legal decisions against current official guidance.