RC Pit Calc Pro: Gear Ratios3.6.8 - Google Play
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Publisher Description
Gear ratio, top speed, corner weight & shock oil calculators for RC car racing
The RC gear ratio calculator trusted by racers and bashers — plus every other calculator you need at the track, in one free app.
GEAR RATIO CALCULATOR
Calculate gear ratio, final drive ratio (FDR), and rollout from your pinion and spur. Enter your gears "before and after" to see the real impact of gear and tire changes as a percentage (e.g. +2.5%), so you know exactly how much speed and motor load to expect. Built-in transmission data for hundreds of popular RC cars.
PINION RECOMMENDER
Not sure which pinion to run? Pick your car, enter your motor, and get a starting pinion from how racers in your class actually gear, plus the range they run. Built from real race setups across hundreds of classes.
TOP SPEED CALCULATOR
For electric cars with brushless motors: enter basic info about your setup and get a solid estimate of your car's top speed.
PILL INSERT / SUSPENSION GEOMETRY CALCULATOR
Find your toe, anti-squat, kick-up, roll center, and track width. Supports all popular cars that use pill inserts, and works with custom suspension mounts.
CORNER WEIGHT CALCULATOR
Enter your car's corner weights and get the full breakdown: front-rear, left-right, and cross weight/wedge.
SHOCK OIL TEMP & VISCOSITY CALCULATOR
Racing on a hotter or colder day than usual? See exactly what shock oil to run to keep the same car feel.
OIL BLENDING CALCULATOR
Don't have the right shock oil with you? Blend the thick and thin oils you already own — this calculator gives you the exact proportions for your target viscosity.
SHOCK DAMPING CALCULATOR
Compare two piston and oil combinations before you build the shock: roll damping, bump pack and jump pack side by side. Supports tapered pistons and dual hole sizes, with presets for common 1/10 and 1/8 shocks plus custom sizes.
FUEL USAGE CALCULATOR
For nitro racers: fuel burn per minute in race conditions, how much you need to finish long mains, and how many pit stops to plan.
FEATURES
- Remembers your entries for each car
- Built-in data (spur gear, transmission ratio) for hundreds of popular cars
- Walkthroughs and detailed help for every calculator
FROM SO DIALED
Want tuning help beyond the math? Our RC Setup App gives you pro setup sheets for 600+ cars, race logging, and an AI mechanic — find "RC Setup App" on Google Play.
About RC Pit Calc Pro: Gear Ratios
The company that develops RC Pit Calc Pro: Gear Ratios is So Dialed. The latest version released by its developer is 3.6.8.
To install RC Pit Calc Pro: Gear Ratios on your Android device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-01 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the RC Pit Calc Pro: Gear Ratios as malware as malware if the download link to com.sodialed.gearcalculator is broken.
How to install RC Pit Calc Pro: Gear Ratios on your Android device:
- Click on the Continue To App button on our website. This will redirect you to Google Play.
- Once the RC Pit Calc Pro: Gear Ratios is shown in the Google Play listing of your Android device, you can start its download and installation. Tap on the Install button located below the search bar and to the right of the app icon.
- A pop-up window with the permissions required by RC Pit Calc Pro: Gear Ratios will be shown. Click on Accept to continue the process.
- RC Pit Calc Pro: Gear Ratios will be downloaded onto your device, displaying a progress. Once the download completes, the installation will start and you'll get a notification after the installation is finished.
Program Details
System requirements
Download information
Pricing
Version History
version 3.6.8
posted on 2026-10-01
New: a Settings tab. See your plan, manage your So Dialed ID and find help in one place. New: Top Speed takes a custom battery voltage. Pick Custom in the battery list and type your own, like 8.4 V for a full 2S pack. Fixed: the Recommended fluid row on Temp & Viscosity no longer gets cut off on smaller phones. Fixed: if the store says you already own Pit Calc Pro, the app now restores it instead of showing an error. Fixed: cancelling Sign in with Apple no longer closes the app.
version 3.6.7
posted on 2026-09-22
Fixes you'll notice: the last card on every tab now scrolls fully above the menu bar instead of hiding behind it. Long car names on My Cars now end neatly with "…" instead of showing half a line. And once your So Dialed ID is added, the extra sign-in button at the top is gone.
version 3.6.4
posted on 2026-09-10
Your upgrade no longer lives on a single phone. Add a free So Dialed ID and your purchase follows you to a new phone, or when you move between iPhone and Android. All it takes is an email address and a code. Nothing else about the app has changed, and the math is untouched.
version 3.6.3
posted on 2026-09-03
Three free cars instead of two. Also fixed: a calculator's first-run tips could be marked as seen against a calculator you had never opened, so the tips never showed up where you needed them. Most often this hit the gear calculator. None of the math has changed.
version 3.6.1
posted on 2026-08-27
Three calculator fixes. Temperature & Viscosity no longer closes on a freezing track temperature. Oil Blending gives a usable answer when your target is outside your two oils, instead of a negative amount. Fuel Usage counts pit stops correctly, remembering that you start the race on a full tank.
version 3.5.2
posted on 2026-08-20
• Calculators now tell you when you are offline instead of coming up empty
• Fixed a crash when adding a car, and another when signing in
• Faster startup, and no more blank screen on the way in
version 3.4.8
posted on 2026-08-06
• Fixed the second input box being pushed off the edge of the screen on Fuel Usage
• Dividers and edges across the app were too faint to see. They now meet accessibility contrast standards
• A refreshed home screen and a new startup screen
version 3.3.7
posted on 2026-05-27
version 1.4.2
posted on 2023-08-07
Fixing bug that caused crashes when changing internal ratio (hopefully.)
version 1.4.1
posted on 2023-08-03
Per request, increases selection of spur gears.
Disclaimer
Official Google Play Link
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