RC Gear Calculator Pro
Understand your gear changes
FreeOffers In-App Purchases
2.0.3for iPhone, iPad and more
Age Rating
RC Gear Calculator Pro Screenshots
About RC Gear Calculator Pro
Easily calculate your gear ratio, final drive ratio, or rollout. Enter your gears "before and after" to see the real impact of your gear and tire changes. See the impact as a percentage (e.g. +2.5%), so you'll know how much speed and load on the motor to expect. Great for all types of RC racing and bashing, including on-road, off-road, oval, drift, speed runs, and more.
Aside from the primary ratio (spur:pinion), you can also see your Final Drive Ratio (useful for all cars, but definitely for touring cars) and Rollout (useful for cars with foam tires such as pan cars, F1, oval, and 1/28 scale.)
FEATURES
- Enter current gears and new gears to see both ratios and the percentage change
- Enter internal ratio to get the before-and-after Final Drive Ratio (FDR)
- Internal ratio for hundreds of cars built-in and updated regularly
- Enter before-and-after tire radius to get changes in rollout
- App remembers your entries, so you don’t need to retype them every time
- Detailed Help page describing ratios and how to use them
Aside from the primary ratio (spur:pinion), you can also see your Final Drive Ratio (useful for all cars, but definitely for touring cars) and Rollout (useful for cars with foam tires such as pan cars, F1, oval, and 1/28 scale.)
FEATURES
- Enter current gears and new gears to see both ratios and the percentage change
- Enter internal ratio to get the before-and-after Final Drive Ratio (FDR)
- Internal ratio for hundreds of cars built-in and updated regularly
- Enter before-and-after tire radius to get changes in rollout
- App remembers your entries, so you don’t need to retype them every time
- Detailed Help page describing ratios and how to use them
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What's New in the Latest Version 2.0.3
Last updated on May 15, 2024
Old Versions
- Allow more precision for tire diameter and rollout
- Explainer message for change %
- Explainer message for change %
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Version History
2.0.3
May 15, 2024
- Allow more precision for tire diameter and rollout
- Explainer message for change %
- Explainer message for change %
2.0.2
Apr 2, 2024
Updated copy on a few screens to improve consistency.
2.0.0
Apr 1, 2024
- Cleaner UI
- Dark mode
- Updated internal ratio database supports more models
- Dark mode
- Updated internal ratio database supports more models
1.4.2
Aug 8, 2023
(Hopefully) fixes bug that causes crash when setting the internal ratio.
1.4.1
Aug 4, 2023
Larger selection of spur gears.
1.4.0
Jun 23, 2023
- When choosing a gear, you can now see the ratio, FDR, and rollout for each gear as you choose.
1.3.0
Jun 8, 2023
Improved interface on calculator screen - spaced elements out more, eliminated page scrolling, font tweaks.
1.2.11
Mar 22, 2023
Updated app links
1.2.10
Sep 29, 2022
Updates to Help page documentation
Added links to RC Gear Recommender App
Added links to RC Gear Recommender App
1.2.8
Aug 19, 2022
Optimized retrieval of new internal ratio definitions.
1.1.10
Aug 17, 2022
Optimized internal ratio update frequency
1.1.9
Aug 4, 2022
Performance enhancements for internal ratio lookup.
1.1.8
Jul 28, 2022
Improved interface on internal ratio selection screen.
1.1.7
Jul 11, 2022
The best gear calculator just got better - now with database of internal ratios for hundreds of popular RC cars!
1.1.6
May 12, 2022
- Shows ratios when choosing a gear
- Remembers chosen gears between sessions
- Remembers chosen gears between sessions
1.1.5
May 7, 2022
Larger selection of spur gears
1.1.4
May 5, 2022
Improved UI to make choosing gears more efficient/faster.
1.1.3
Jan 15, 2022
Allow decimals in Tire Diameter
1.1.2
Dec 4, 2021
- Compare before/after tire diameter values to see how a new set of tires will affect rollout
- Interface enhancements
- Interface enhancements
1.1.1
Aug 10, 2021
- Added links for support
- Updated help text for accuracy
- Updated help text for accuracy
1.1
Jul 9, 2021
Changed gear inputs to text
1.0
Jun 23, 2021
RC Gear Calculator Pro FAQ
Click here to learn how to download RC Gear Calculator Pro in restricted country or region.
Check the following list to see the minimum requirements of RC Gear Calculator Pro.
iPhone
Requires iOS 13.0 or later.
iPad
Requires iPadOS 13.0 or later.
iPod touch
Requires iOS 13.0 or later.
RC Gear Calculator Pro supports English
RC Gear Calculator Pro contains in-app purchases. Please check the pricing plan as below:
Lifetime backer
$2.00
