# Rollout Calculator - RC DD car — Set up with three good tables!

> Calculates RC car rollout distance using gear and tire specifications. (iPhone/iPad app by Takao Ichimura.)

- Source: https://appshunter.io/ios/app/rollout-calculator-rc-dd-car/id6451037467 (this page in markdown: same URL + `.md`)
- Developer: [Takao Ichimura](https://appshunter.io/developer/1474061593)
- Category: Utilities, Lifestyle
- Price: Free
- Rating: 4.90/5 from 7 App Store ratings
- Age rating: 4+
- Requires: iOS 13.0 · 6 MB
- Languages: American English, Japanese
- Released: 2023-07-10
- Data updated: 2026-08-09
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/rollout-calculator-rc-dd-car/id6451037467/reviews.md

## What is Rollout Calculator?

“Rollout" means the travel distance (mm) of a RC direct drive car with one rotation of the motor. It is said that Rollout is one of the important items on the setup.

"Rollout Calculator - RC DD car" calculates Rollout with a simple operation and displays it in three tables that are easy to use for setup.

(How to use)
- Select from three types with two tables to display on the screen from the "Display types" button.
- Tap the button on the top of the screen to open the picker, so select the number of pinion gear teeth, spur gear teeth, and tire diameter to be the center of the table.
- Select the pitch of the selection item from the "Setting" button.

The developer assumes no responsibility for any accident, violation, loss or claims by third parties which may arise from the use of this app.

## Key features

- Rollout distance calculation
- Three display tables
- Pinion and spur gear selection
- Tire diameter input
- Pitch setting


## Frequently asked questions about Rollout Calculator

### What is Rollout Calculator?

Rollout Calculator is a utility app designed to calculate the travel distance of an RC direct drive car per motor rotation. It helps users optimize their car's setup by providing clear, table-based results.

### How do I use Rollout Calculator?

You can use Rollout Calculator by selecting the number of pinion gear teeth, spur gear teeth, and tire diameter. The app then displays the calculated rollout distance in three easy-to-use tables.

### What are the display options in Rollout Calculator?

Rollout Calculator offers three different display types for the results, which can be selected from the 'Display types' button. This allows users to choose the format that best suits their setup needs.

### Does Rollout Calculator have ads?

Yes, Rollout Calculator contains advertisements. As a free utility, it is supported by ads to provide its features to users without charge.

### What devices is Rollout Calculator compatible with?

Rollout Calculator is compatible with iPhones, iPads, and iPods. It is designed for iOS devices.

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

Rollout Calculator has an age rating of 4+. This indicates it is suitable for users of all ages.

### How often is Rollout Calculator updated?

The latest version of Rollout Calculator is 3.0.3, last updated on October 21, 2025. Updates are released periodically to improve functionality and address any issues.

### What is the price of Rollout Calculator?

Rollout Calculator is available for free. Users can download and use its features without any cost.

## Version history (last 5 releases)

### 3.0.3 — 2025-10-21

Updated app information.

### 3.0.2 — 2025-04-01

Minor fixes and improvements.

### 3.0.1 — 2024-12-08

Fixed a minor bug and improved performances.

### 3.0.0 — 2024-12-07

The number of display types has been increased from two to three, making it easier to use.
Other improvements.

### 2.0.0 — 2024-10-04

A table with row labels of pinion and column labels of spur has been added for easier use. You can select the table from the added "Screen Selection" button.
Other improvements.

## Apps similar to Rollout Calculator

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [RC AI Mechanic](https://appshunter.io/ios/app/rc-ai-mechanic/id1645671690) | 5.0 (23) | Free | Utilities |
| [IMRC Setup Manager](https://appshunter.io/ios/app/imrc-setup-manager/id6756513903) | 4.3 (3) | Free | Utilities |
| [R1WURKS](https://appshunter.io/ios/app/r1wurks/id1449942877) | 4.1 (15) | Free | Utilities |
| [RC Car SetUp Wizard](https://appshunter.io/ios/app/rc-car-setup-wizard/id1222681359) | 3.7 (3) | $2.99 | Utilities |
| [RC Pit Calc Pro](https://appshunter.io/ios/app/rc-pit-calc-pro/id1562268871) | 4.4 (23) | Free | Utilities |
| [RC Speed Calculator Pro](https://appshunter.io/ios/app/rc-speed-calculator-pro/id6445860835) | 4.9 (23) | Free | Utilities |

## More apps by Takao Ichimura

- [Smart Calculator - SmartCalc](https://appshunter.io/ios/app/smart-calculator-smartcalc/id1474061594)
- [Japan Consumption Tax Calc](https://appshunter.io/ios/app/japan-consumption-tax-calc/id1475187358)
- [India Calculator - IndiaCalc](https://appshunter.io/ios/app/india-calculator-indiacalc/id1476661552)
- [Arabic Calculator - ArabiCalc](https://appshunter.io/ios/app/arabic-calculator-arabicalc/id1477192394)
- [Modulo Calculator](https://appshunter.io/ios/app/modulo-calculator/id1514351751)
- [Sheet Count Calculator](https://appshunter.io/ios/app/sheet-count-calculator/id1516419390)

All apps by Takao Ichimura: https://appshunter.io/developer/1474061593

## Related topics

[rollout calculator](https://appshunter.io/ios/topics/rollout-calculator) · [rc gear calculator](https://appshunter.io/ios/topics/rc-gear-calculator) · [rc gears](https://appshunter.io/ios/topics/rc-gears)

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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 2026-08-09.*