# NIH BMI Calculator — user reviews > 75 indexed App Store user reviews of NIH BMI Calculator by The National Heart Lung and Blood Institute, rated 2.90/5 from 51 ratings. - Source: https://appshunter.io/ios/app/nih-bmi-calculator/id446441346/reviews - App overview in markdown: https://appshunter.io/ios/app/nih-bmi-calculator/id446441346.md - Rating breakdown: 5★ 14 · 4★ 6 · 3★ 7 · 2★ 9 · 1★ 15 ## What do users think of NIH BMI Calculator? Overall sentiment: negative **Pros** - 👍 Simple and straightforward - ✅ Calculates BMI correctly - 🔗 Links to helpful information - 🚫 No ads - 💯 Works as intended (when functional) **Cons** - ❌ Cannot key decimal points - ❌ Unusable in metric mode - ❌ App crashes/won't open - ❌ Outdated and not maintained - ❌ Ignores physical fitness/gender **Commonly reported bugs** - App crashes immediately on launch - App does not open - Input fields non-responsive on active call - App closes before loading - App no longer works with latest iOS updates **Most requested features** - Add decimal point input for weight - Allow recording of daily weight and view as a graph - Include gender input for BMI calculation - Add option for recording daily exercise - Add option for tallying fruit/vegetable intake - Optimize for newer iPhone models - Store results within the app - Include information within the app, not redirect to web ## Newest reviews (15 of 75) ### 2/5 — Whole numbers only *2026-07-10, version 2.0.2* Does not accept fractional, inputs or decimal inputs. If your height is 5 foot 8.5 inches, or your weight is 160.5 pounds, this information cannot be entered. Only accepts whole numbers. No decimal point on provided keyboard ### 3/5 — Unable to key a decimal point in the keyboard *2024-07-29, version 2.0.2* The app does not facilitate keying a decimal point on their keyboard. Only whole lbs of kilograms. ### 4/5 — Almost perfect *2023-11-17, version 2.0.2* Just needs the addition of decimals to be perfect ### 3/5 — Need decimals *2023-02-25, version 2.0.2* The keyboard you present for noir is great, but it needs decimals please. ### 2/5 — No decimals *2017-10-07, version 2.0.2* This app would be significantly more useful if there was an option to use decimals ### 2/5 — pointless *2017-09-26, version 2.0.2* Can’t put a decimal point in when inputting weight in kilos ### 1/5 — Apparent iOS 9 issues *2015-11-22, version 1.2* Worked fine on previous iOS; crashes 100% since update to iOS 9. (IP6) ### 3/5 — Help with opening? *2015-11-20, version 1.2* For some reason I can't seem to open this app. Whenever I click on to open it and it doesn't open. I have tried deleting and redownloading the app. I have also made sure I have enough room in my phone storage. I don't know what is the matter here! ### 1/5 — Doesn't work *2015-11-18, version 1.2* Couldn't even start the app ### 1/5 — Crashes *2015-11-17, version 1.2* Haven't been able to use. Crashes as soon as I open ### 1/5 — Won't load *2015-11-11, version 1.2* Following the last iOS update (9), this app won't load. Deleting and reinstalling doesn't help. ### 1/5 — BMI calculator *2015-11-10, version 1.2* Poor - no stars (but I had to select 1 in order to post the review)! Downloaded and it would not open. Restarted my phone and still - would not open... I'd rather sign on to the Internet than deal with this! ### 1/5 — Terrible *2015-11-08, version 1.2* Won't work with latest iOS update for iPad. Please fix. ### 1/5 — App won't open *2015-11-07, version 1.2* I have downloaded it twice. Won't open. ### 1/5 — Crash *2015-11-06, version 1.2* This app won't even open. It immediately crashes. Boo. ## Most critical reviews (10 lowest-rated) ### 1/5 — Please include decimals. *2023-04-23, version 2.0.2* This should be an easy fix. Uninstalling. ### 1/5 — Unusable in Metric Mode *2020-02-26, version 2.0.2* Two decimal places are required in Metric mode for accuracy! ### 1/5 — Can’t write weight in decimals *2018-02-25, version 2.0.2* In metric you can’t input the weight in decimal, no option of decimal, who proof checks the app? ### 1/5 — Who programmed this? *2017-12-09, version 2.0.2* No decimal place possible for metric weight. Come on, get serious. ### 1/5 — Age/gender? *2016-07-16, version 2.0.2* No input for age or gender ### 1/5 — App will not open *2015-12-22, version 1.2* Nothing to rate if app doesn't work. Can't give zero stars. ### 1/5 — Useless *2015-12-18, version 1.2* I think I'll stick to my Doctor, a week ago she told me I was in the normal/overweight range not freaking obese!! ### 1/5 — Broke *2015-12-09, version 1.2* Since last update it opens then closes before loading app ### 1/5 — App does not work *2015-12-08, version 1.2* App doesn't even open. Forecloses when you try to open it. ### 1/5 — BMI *2015-11-23, version 1.2* It doesn't work closes when I open it Ipad2 latest updates 23 nov 2015 ## Most praised reviews (10 highest-rated) ### 5/5 — Great! *2016-10-04, version 2.0.2* 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. ### 5/5 — Accurate, simple *2016-08-29, version 2.0.2* Accurate but not as accurate as other BMI apps, maybe some rounding issue? Simple app. Does what it says. Not much additional information. ### 5/5 — Correct *2016-07-13, version 2.0.2* Finally an app that calculates BMI correctly. It is quite scary,the first two I downloaded did not. It is a simple equation. ### 5/5 — Does what it says well *2016-01-03, version 1.2* This is a handy tool I plan to use to keep myself informed as I lose weight. It does not give professional advice to interpret the results, and that's fine with with me, because I'd rather read up on that separately or talk with a professional. It's a good basic tool that works well. FYI This is on my 4S with iOS 7 ### 5/5 — App no longer works *2015-11-09, version 1.2* I'm confused. I thought that the app might have been discontinued but it still appears on their website and in the Appstore but it doesn't work. App support goes to a 'bad' page. When you click on the app itself the screen goes black and then returns to your homepage. What is going on? ### 5/5 — Bmi *2013-04-23, version 1.2* Excellent ### 5/5 — Bmi *2013-04-03, version 1.2* Good app ### 5/5 — Nice App *2013-03-22, version 1.2* Good App…. Straight To The Point ### 5/5 — Great *2012-11-14, version 1.2* Verry easy to use. For me great work instrument. ### 5/5 — Paramedical Examiner *2012-11-05, version 1.2* BMI is a highly controversial way of determining whether someone is overweight. A person who does body building could have an obese BMI although having little body fat as muscle is dense and therefore heavy. Nevertheless BMI calculation is standardized by the AMA and is not gender specific. So the reviews criticizing this app based on not liking the results are not fair. This app does what it's designed to do, which is to provide a BMI calculation based on height and weight without prejudice. What the user decides to do with that info is another matter. The app works fine. --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-27.*