# Muscle Calculator — FFMI & BMI

> Calculates Fat Free Mass Index (FFMI) for fitness enthusiasts. (iPhone/iPad app by Vividly Technologies Inc..)

- Source: https://appshunter.io/ios/app/muscle-calculator/id1576127895 (this page in markdown: same URL + `.md`)
- Developer: [Vividly Technologies Inc.](https://appshunter.io/developer/1574999664)
- Category: Utilities, Health & Fitness
- Price: Free
- Rating: 5.00/5 from 2 App Store ratings
- Age rating: 12+
- Requires: iOS 17.6 · 7 MB
- Languages: English
- Released: 2021-07-11
- Data updated: 2026-06-01
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/muscle-calculator/id1576127895/reviews.md

## What is Muscle Calculator?

This Muscle Calculator is specifically designed for workout enthusiasts and calculates Fat Free Mass Index (FFMI). FMMI value is a more effective indicator for athletes, bodybuilders and fitness lovers as opposed to BMI. By using this calculator, not only can we find your FMMI, you can also see where you stand in relation to the FMMI range table.

To use this calculator:
1.Fill out the required fields including your height, weight and body fat rate
2.Tap on Calculate
3.Review your results

Privacy Policy: https://www.vividlytec.com/privacy-policy
Terms of Use: https://www.vividlytec.com/terms-of-use

## Key features

- FFMI Calculation
- BMI Calculation
- FFMI Range Comparison
- Input Height, Weight, Body Fat
- Workout Enthusiast Tool


## Frequently asked questions about Muscle Calculator

### What is Muscle Calculator?

Muscle Calculator is a utility app designed to help users calculate their Fat Free Mass Index (FFMI) and Body Mass Index (BMI). It provides a way to understand body composition beyond traditional metrics.

### How do I use Muscle Calculator?

To use Muscle Calculator, you need to fill in your height, weight, and body fat rate. After tapping 'Calculate', you can review your FFMI and BMI results and compare them to standard ranges.

### What information does Muscle Calculator need?

Muscle Calculator requires your height, weight, and body fat rate to accurately calculate your FFMI and BMI. This data is used solely for the calculation process.

### Is Muscle Calculator free to use?

Yes, Muscle Calculator is free to download and use. However, it does contain advertisements as part of its operational model.

### Does Muscle Calculator have ads?

Yes, Muscle Calculator contains advertisements. These ads help support the continued development and free availability of the app.

### What devices does Muscle Calculator support?

Muscle Calculator is available for iPhone and iPad devices. It is designed to run on Apple's iOS operating system.

### How often is Muscle Calculator updated?

The latest version of Muscle Calculator is 1.5.2, and it was last updated on April 16, 2025. Updates typically include improvements and bug fixes.

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

Muscle Calculator has an age rating of 12+. This indicates that the content is generally suitable for users aged 12 and older.

## Version history (last 5 releases)

### 1.5.2 — 2025-04-16

Update for New iOS

### 1.4.0 — 2024-04-30

Update for iOS 17

### 1.3.0 — 2023-08-22

BMR and TDEE have been added to the app! Please use them as indicators for weight loss or weight gain.

### 1.2.1 — 2023-08-02

Update the result screen to full size

### 1.2.0 — 2023-04-28

update for iOS16

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## More apps by Vividly Technologies Inc.

- [HIIT Timer](https://appshunter.io/ios/app/hiit-timer/id1574999662)
- [Visualization](https://appshunter.io/ios/app/visualization/id1585513914)
- [YumeVisard](https://appshunter.io/ios/app/yumevisard/id1635830795)

All apps by Vividly Technologies Inc.: https://appshunter.io/developer/1574999664

## Related topics

[ffmi](https://appshunter.io/ios/topics/ffmi)

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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 2026-06-01.*