# BMI Calculator: Weight Index — BMI Tracker & Trend Charts

> Simple tool to calculate Body Mass Index using imperial or metric units. (iPhone/iPad app by Josiah Rininger.)

- Source: https://appshunter.io/ios/app/bmi-calculator-weight-index/id1467544257 (this page in markdown: same URL + `.md`)
- Developer: [Josiah Rininger](https://appshunter.io/developer/1467544256)
- Category: Health & Fitness, Medical
- Price: Free
- Rating: 4.70/5 from 7 App Store ratings · 6 written reviews indexed
- Age rating: 4+
- Requires: iOS 18.0 · 5 MB
- Languages: American English
- Released: 2019-06-11
- Data updated: 2026-08-25
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/bmi-calculator-weight-index/id1467544257/reviews.md

## What is BMI Calculator?

BMI Calculator helps you understand your body mass index and track it over time. Fast, private, and free.

Enter your height and weight and get your BMI instantly, with a clear, color-coded category and a plain-language explanation of what the number means. Switch between metric and imperial units, and choose the BMI standard that fits you, including WHO/CDC cutoffs and WHO Asian action points.

WHAT YOU CAN DO
• Calculate BMI in seconds with a clean, accessible interface
• See the healthy weight range for your height, shown in your units
• Track every result in your history and watch the trend chart over weeks and months
• Add Home Screen and Lock Screen widgets to see your latest number at a glance
• Use Spotlight and Siri Shortcuts to calculate without even opening the app
• Sync weight and height with Apple Health so your data stays consistent across apps
• Designed for adults: clear, non-judgmental, and person-first throughout

REMOVE ADS (optional, one-time purchase)
The free version shows a single, non-personalized banner ad. Prefer none? One tap removes it for good. No subscription, ever.

PRIVATE BY DESIGN
Your measurements stay on your device. No account, no sign-up, and no selling of your data. Your health data is never used for ads.

A NOTE ON HOW TO USE THIS APP
BMI is a screening tool, not a diagnosis. It is a general indicator that does not measure body composition directly and does not account for muscle mass, bone density, or other individual factors. This app is for general informational and educational purposes only and is not a substitute for professional medical advice. Please talk with a qualified healthcare provider about your health and before making changes to diet or exercise.

Download BMI Calculator and start tracking your numbers today.

## Key features

- Calculate BMI with weight and height
- Imperial and Metric unit support
- Ideal BMI chart visualization
- Fast and easy to use

## Recent user reviews (6 of 6)

All indexed reviews: https://appshunter.io/ios/app/bmi-calculator-weight-index/id1467544257/reviews.md

### 5/5 — Great, simple-to-use, and all you need BMI calculator

*2020-01-26*

Would rate 8 out of 8 mate

### 3/5 — AMM

*2019-11-20*

I like it except the weight needs to start at less than 80 lbs for pediatric patients so I will probably uninstall this app

**Developer response:** Thanks for the feedback! I am currently in the works of updating the app to support a larger demographic of weights and heights!

### 5/5 — Great App!

*2019-06-10*

There is something very unique and smooth about this app and I'm going to be able to make great use of it. I've been looking for a nice BMI calculator, and now that this ond has been developed I won't be utilizing any others. Great app, very easy to use! Love it!

**Developer response:** Thank you so much for the feedback! I'm happy to hear that you are enjoying the app!

### 5/5 — Great app!

*2019-06-10*

The app is nice and simple to use. Perfect for measuring your BMI. I would definitely recommend giving it a try. 👍

### 5/5 — Josiah’s app

*2019-06-10*

This app is so clever! I love it, it really helps with my daily life!!!

### 5/5 — ;)

*2019-06-09*

app of the century

## Frequently asked questions about BMI Calculator

### How do I calculate my BMI with BMI Calculator?

To calculate your BMI, simply input your weight and height into the app and tap "Calculate". The app will then display your Body Mass Index.

### Does BMI Calculator support both imperial and metric units?

Yes, BMI Calculator offers two measurement options: Imperial (lbs, ft, in) and Metric (kg, cm) to accommodate different user preferences.

### What does the BMI Calculator app show me besides my BMI number?

In addition to your BMI number, the app displays a chart that illustrates what an ideal BMI range looks like for you, providing context for your result.

### Is BMI Calculator free to use?

Yes, BMI Calculator is completely free to download and use, with no cost associated with its core functionality.

### Does BMI Calculator have ads?

No, BMI Calculator is ad-free, allowing for an uninterrupted user experience while calculating your BMI.

### What devices is BMI Calculator available on?

BMI Calculator is available on iPhone, iPad, and iPod devices, making it accessible to a wide range of Apple users.

### How often is BMI Calculator updated?

The latest version of BMI Calculator is 1.2, and it was last updated on April 5, 2020. This indicates a moderate update frequency.

### What is the age rating for BMI Calculator?

BMI Calculator has an age rating of 4+, meaning it is suitable for users of all ages and does not contain content inappropriate for children.

## Version history (last 4 releases)

### 2.0 — 2026-07-22

Version 2.0 is a complete, ground-up rebuild for iOS 26: faster, cleaner, and more private.

• New: your healthy weight range for your height, shown in your units
• New: a History tab with a trend chart that highlights the healthy range
• New: Home Screen and Lock Screen widgets, plus Spotlight and Siri "Calculate BMI"
• New: Apple Health sync, and a choice of WHO/CDC or WHO Asian BMI cutoffs
• New: clearer context on what BMI can and can't tell you, including how muscle can raise the number
• Improved: full VoiceOver and Dynamic Type support, with a refined light and dark design
• Optional: a one-time Remove Ads purchase. No subscription, ever.

Your measurements stay on your device.

### 1.2 — 2020-04-05

• Visual Updates
• Improvements to the overall performance
• Supports latest OS

Thanks for using BMI Calculator & Enjoy!

### 1.1 — 2019-09-29

• Dark Mode!
• iOS 13 Support
• Other minor Improvements

Thanks for using BMI Calculator & Enjoy!

### 1.0 — 2019-06-09

No release notes.

## Apps similar to BMI Calculator

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [BMI Calculator- Weight Monitor](https://appshunter.io/ios/app/bmi-calculator-weight-monitor/id6475051596) | 4.8 (4) | Free | Health & Fitness |
| [BMI Calculator Easy](https://appshunter.io/ios/app/bmi-calculator-easy/id1473645925) | — | Free | Health & Fitness |
| [BMI Calculator, Weight Tracker](https://appshunter.io/ios/app/bmi-calculator-weight-tracker/id1590860385) | 4.6 (87) | Free | Health & Fitness |
| [BMI - BMR Calculator](https://appshunter.io/ios/app/bmi-bmr-calculator/id1225911847) | 4.6 (158) | Free | Health & Fitness |
| [BMI Calculator and Tracker](https://appshunter.io/ios/app/bmi-calculator-and-tracker/id1666673281) | 5.0 (4) | Free | Health & Fitness |
| [BMI - Weight Loss Tracker](https://appshunter.io/ios/app/bmi-weight-loss-tracker/id1524251347) | 4.9 (56) | Free | Health & Fitness |

## More apps by Josiah Rininger

- [Plotmoji: Movie Emoji Game](https://appshunter.io/ios/app/plotmoji-movie-emoji-game/id6784072408)
- [Roamprint: Countries Visited](https://appshunter.io/ios/app/roamprint-countries-visited/id6785280490)

All apps by Josiah Rininger: https://appshunter.io/developer/1467544256

## Related topics

[nhs carculator](https://appshunter.io/ios/topics/nhs-carculator) · [bmi checker](https://appshunter.io/ios/topics/bmi-checker)

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*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 2026-08-25.*