--- title: "RC Pit Calc Pro - Reviews, Revenue and Downloads in United States | Apple App Store" description: "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), a" --- # RC Pit Calc Pro — United States > Gear Ratio & Setup Calculator ![RC Pit Calc Pro App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/7a/10/6f/7a106f5a-d476-965b-f19a-adf1278c024f/AppIcon-0-0-1x_U007emarketing-0-8-0-85-220.png/434x0w.png) **Developer:** [Degree3](https://apptail.io/developer/degree3-DRfb) **Category:** Utilities **Rating:** 4.4/5 (24 ratings) **Price:** Free **Bundle ID:** com.sodialed.gearcalculator **Store:** Apple App Store **Country:** United States **Version:** 3.6.8 (released 2026-10-02) **Original Release:** 2021-06-23 **Languages:** Chinese, Turkish, German, Italian, Czech, Japanese, French, Swedish, English, Dutch, Portuguese, Spanish **App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id1562268871) **AppTail Page:** [https://apptail.io/app/rc-pit-calc-pro-wpMc/united-states](https://apptail.io/app/rc-pit-calc-pro-wpMc/united-states) ## RC Pit Calc Pro Description 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 the App Store. ## RC Pit Calc Pro Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/be/46/c9/be46c92b-a20b-30ae-c377-8eefa53d6349/1_-_Home.png/1284x2778.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/26/fb/91/26fb9179-d6e6-1027-69fe-479c87260645/2_-_Gear_Calc.png/1284x2778.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/c7/d4/82/c7d48281-d96e-694b-d70d-6b31239a9251/4_-_Top_Speed.png/1284x2778.png) - [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/94/d7/ee/94d7ee9b-e862-e0e4-8682-bb9cd5687171/3_-_Corner_Weights.png/1284x2778.png) - [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/9d/4f/06/9d4f0628-1731-9820-66ba-f49055a6dad9/5_-_More.png/1284x2778.png) ## RC Pit Calc Pro Rating Breakdown in United States - 5 stars: 18 (75%) - 4 stars: 3 (13%) - 3 stars: 0 (0%) - 2 stars: 1 (4%) - 1 stars: 2 (8%) ## RC Pit Calc Pro Reviews in United States ### *---- "Can’t scroll" Spur and pinion chart is glitched after new update. -- jrrex10, 2025-10-12 ### *---- "Completely in accurate" I put in my gearing, kv, battery, ect. Gives me a top speed of 4. The car I can promise does well over 100. App is fake in my experience. -- Hoonigantaco 23, 2025-08-31 ### ***** "Awesome app" It helped me figure out exactly what I wanted. -- Sysop Justin, 2023-01-25 ### ****- "Setup" Helps with setup -- Losi razor, 2023-01-22 ### ***** "Awesome App" Makes calculating gear ratios easy. Tuning has been much easier -- bandsthatwearmakeupsuck, 2022-12-16 ### ****- "Good app" Really good app to have helped out a lot -- sr che, 2022-09-09 ### **--- "Could be good" Currently won’t allow changing any values, always reverting to what was previously set. Frustrating. Also does not handle screen ratio properly, and hides important buttons behind the keyboard. -- jgmay3, 2022-06-17 ### ***** "Great app." Helped me get a perfect top out speed and keep good temps. -- cody brindley, 2021-10-19 [View all RC Pit Calc Pro reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews) ## RC Pit Calc Pro In-App Purchases | Item | Price | |------|-------| | Lifetime Backer | $4.99 | | Lifetime backer | $2.00 | ## RC Pit Calc Pro Discovered Keywords - rc gear calculator pro ## Apps Similar to RC Pit Calc Pro - [Castle Link](https://apptail.io/app/castle-link-Wzl/united-states) - [R1WURKS](https://apptail.io/app/r1wurks-ZPq/united-states) - [HW Link V2](https://apptail.io/app/hw-link-v2-Mhx/united-states) - [RC Gears](https://apptail.io/app/rc-gears-OHW/united-states) - [Fantom CONNECT-1](https://apptail.io/app/fantom-connect-1-Omsb/united-states) - [SkyCharger](https://apptail.io/app/skycharger-sfWb/united-states) - [REDS ESC](https://apptail.io/app/reds-esc-Zovc/united-states) - [FuriCar](https://apptail.io/app/furicar-EpMc/united-states) - [ISD Go](https://apptail.io/app/isd-go-LpMc/united-states) - [Rollout Calculator - RC DD car](https://apptail.io/app/rollout-calculator-rc-dd-car-hfYm/united-states) ## RC Pit Calc Pro Available In - [United States](https://apptail.io/app/rc-pit-calc-pro-wpMc/united-states) - [United Kingdom](https://apptail.io/app/rc-pit-calc-pro-wpMc/united-kingdom) - [Spain](https://apptail.io/app/rc-pit-calc-pro-wpMc/spain) - [Japan](https://apptail.io/app/rc-pit-calc-pro-wpMc/japan) - [Canada](https://apptail.io/app/rc-pit-calc-pro-wpMc/canada) - [Australia](https://apptail.io/app/rc-pit-calc-pro-wpMc/australia) - [New Zealand](https://apptail.io/app/rc-pit-calc-pro-wpMc/new-zealand) - [Indonesia](https://apptail.io/app/rc-pit-calc-pro-wpMc/indonesia) - [Netherlands](https://apptail.io/app/rc-pit-calc-pro-wpMc/netherlands) - [Portugal](https://apptail.io/app/rc-pit-calc-pro-wpMc/portugal) - 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