# FixedGearCalc — Get your skit patch and ratio

> Get your skit patch and ratio (iPhone/iPad app by Luca Meyer.)

- Source: https://appshunter.io/ios/app/fixedgearcalc/id6502835601 (this page in markdown: same URL + `.md`)
- Developer: [Luca Meyer](https://appshunter.io/developer/1709782649)
- Category: Utilities, Sports
- Price: Free (on sale, was $0.99)
- Age rating: 4+
- Requires: iOS 15.0 · 0 MB
- Languages: German
- Released: 2024-05-25
- Data updated: 2026-05-16
- User reviews in markdown: https://appshunter.io/ios/app/fixedgearcalc/id6502835601/reviews.md

## What is FixedGearCalc?

Input your tire size, sprocket and chainring teeth and get your:
* Ratio
* Number of skid patches (also ambidextrous)
* Development
* Get your speed at a certain cadence
* Get the needed cadence for a certain speed
* Switch between metric and imperial

Currently tire sizes are from 622-20 to 622-56.
Sprocket teeth from 9 to 23
Chainring teeth from 29 to 59

Let me know if your desired gear is missing ^_^


## Version history (last 2 releases)

### 1.0.1 — 2024-05-27

* Added 622-30

### 1.0.0 — 2024-05-25

No release notes.

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## More apps by Luca Meyer

- [StayInside](https://appshunter.io/ios/app/stayinside/id6477404555)
- [Tobi2Go](https://appshunter.io/ios/app/tobi2go/id6478235341)
- [Color&Shape](https://appshunter.io/ios/app/color-and-shape/id6479221105)
- [Tired Blue Whale](https://appshunter.io/ios/app/tired-blue-whale/id6480527807)

All apps by Luca Meyer: https://appshunter.io/developer/1709782649

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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 2026-05-16.*