# Rotational Speed Converter

> Rotational Speed Converter (iPhone/iPad app by Kei Suefuji.)

- Source: https://appshunter.io/ios/app/rotational-speed-converter/id1388335882 (this page in markdown: same URL + `.md`)
- Developer: [Kei Suefuji](https://appshunter.io/developer/1388335881)
- Category: Utilities, Productivity
- Price: $1.99
- Age rating: 4+
- Requires: iOS 15.6 · 0 MB
- Languages: American English, French (France), German (Germany), Japanese, Chinese (Simplified, China), Chinese (Traditional, Taiwan)
- Released: 2018-06-22
- Data updated: 2026-05-17
- User reviews in markdown: https://appshunter.io/ios/app/rotational-speed-converter/id1388335882/reviews.md

## What is Rotational Speed Converter?

The Rotational Speed Converter application converts the input rotational speed into 4 units.
The units to be converted are rpm, rps, deg/s, and rad/s.
Simply enter the rotational speed value and select the unit of rotational speed with the unit selection button, the value converted into 4 units will be displayed.


## Version history (last 5 releases)

### 2.3.0 — 2026-01-12

Minor improvements.

### 2.2.0 — 2025-05-29

This update supports iOS 18.

### 2.1.0 — 2022-04-24

Updated to support iOS 15.4.

### 2.0.1 — 2019-03-09

Revamp the design of the app.

### 1.0.0 — 2018-05-27

No release notes.

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## More apps by Kei Suefuji

- [Hardness Unit Converter](https://appshunter.io/ios/app/hardness-unit-converter/id1409248484)
- [Force Unit Converter](https://appshunter.io/ios/app/force-unit-converter/id1415262579)
- [Motor Power Calculator](https://appshunter.io/ios/app/motor-power-calculator/id1429280610)
- [Torque Unit Converter](https://appshunter.io/ios/app/torque-unit-converter/id1434537031)
- [Color Scheme Designer](https://appshunter.io/ios/app/color-scheme-designer/id1435485163)

All apps by Kei Suefuji: https://appshunter.io/developer/1388335881

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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 2026-05-17.*