Body Measurement Calculator app icon
Health

Body Measurement Calculator

Work out your BMI from your height and weight and see which waist risk band you fall in. Free and private, with no sign-up.

About Body Measurement Calculator

Find this application for Linux (.deb) at 👉 Linux Downloads

Body Measurement Calculator works out two things from what you type: your body mass index, from your height and weight, and the risk band your waist circumference puts you in. The first is a ratio; the second is a set of cut-offs that are different for men and women.

What it tells you

  • Body mass index. Weight in kilograms divided by height in metres squared, compared against the usual adult bands: under 18.5 underweight, 18.5 to 24.9 normal weight, 25 to 29.9 overweight, and 30 or over obesity, split into three classes.
  • Waist risk. If you also give your waist circumference, it tells you which band you are in. For men the cut-offs are 94 cm and 102 cm; for women, 80 cm and 88 cm. That is the only thing the app uses your gender for.
  • History on your device. Every calculation is saved locally, with a line chart of how your BMI has moved, so you can compare months instead of a single number you forget the next day.

What it does not do

It does not measure body fat. There is no body fat percentage here, and there never was: BMI is a rough stand-in for it, nothing more. It does not calculate your ideal weight, your calories or your macros, and it does not ask your age or your activity level because it has no use for them.

The bands are adult bands. For anyone under 18 the numbers need growth charts by age and sex, which this calculator does not have. And a BMI is not a diagnosis: it cannot tell muscle from fat, so a trained athlete can come out as overweight while having little body fat.

Its real use is comparison: how your number moves over the months, and whether the change you made to your diet or your exercise is showing. For that, the local history is the useful part, much more than the one-off result.

Privacy

No account, no advertising and no data sent to a server. The calculations happen in your browser and the history stays on your device. Clearing your browser data clears it.

For other unit conversions there is the unit converter, and for blood pressure figures there is the blood pressure interpreter.

Body Measurement Calculator features

Install Body Measurement Calculator as a PWA

Body Measurement Calculator is a progressive web app. Install it from your browser and it runs like a normal app, with its own icon and its own window.

Android

Open Body Measurement Calculator in Chrome, tap the browser menu (⋮) and choose “Install app” or “Add to Home screen”.

iPhone / iPad

Open Body Measurement Calculator in Safari, tap the Share button and choose “Add to Home Screen”.

Desktop

Open Body Measurement Calculator in Chrome, Edge or Brave and click the install icon on the right side of the address bar.

Frequently asked questions about Body Measurement Calculator

What is Body Measurement Calculator?

Work out your BMI from your height and weight and see which waist risk band you fall in. Free and private, with no sign-up.

Is Body Measurement Calculator free?

Yes. Body Measurement Calculator is a free, ad-free progressive web app. It needs no sign-up and no payment details, and your data stays on your own device.

Does Body Measurement Calculator work offline?

Yes. Once installed as a PWA, Body Measurement Calculator runs from your device and keeps working when you have no internet connection.

How do I install Body Measurement Calculator on my phone or computer?

Open Body Measurement Calculator in your browser and choose “Install app” from the Chrome menu, or “Add to Home Screen” in Safari. It then opens with its own icon, like a native app.

Which devices does Body Measurement Calculator support?

Body Measurement Calculator works on Android, iOS, Windows, macOS and Linux, because it is a progressive web app.

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