The National Heart, Lung, and Blood Institute’s BMI (Body Mass Index) calculator is a useful tool to screen for weight categories that may lead to health problems. The downloadable phone application puts the fully functioning calculator right on your phone, along with links to resources on the NHLBI site.

What’s New

Version 2.0.2

This app has been updated by Apple to display the Apple Watch app icon.

Support for iOS 9.3.2

Ratings and Reviews

2.8 out of 5
45 Ratings

45 Ratings

Nikky namer ,

No decimals

This app would be significantly more useful if there was an option to use decimals

Procat ,

Accurate, simple

Accurate but not as accurate as other BMI apps, maybe some rounding issue? Simple app. Does what it says. Not much additional information.

MrWufz ,


Age and gender should not be included in a BMI calculator. Unlike some other unofficial apps I tried (since this one was further down search results), this one rightfully doesn't include age/gender inputs.

App Privacy

The developer, The National Heart Lung and Blood Institute, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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