Description
Ratio Calc is a quick and easy tool for radio control car racers to use trackside. Knowing your final drive ratio (FDR) is very useful for comparison with other racers to determine if your car is geared correctly. You can also view your favourite information on Apple Watch. It lets you quickly select your car by filtering on manufacturer and model. Select your pinion and spur size and the FDR is displayed. Tyre diameter can also be entered to calculate your rollout. Ratio and roll out charts are also available which plot pinion and spur gear combinations to create very handy reference tables. - Save your favourite cars for quick access - Save notes and track name against your favourite cars - Share ratio/rollout charts - Download new cars from within the app - Select measurement units (imperial/metric) - Select your preferred gear pitch, alternative ratios in other pitches will be shown - Over 1600 cars/variants in the database
Category Ranking
Review Breakdown
Screenshots
Reviews
Please create this for android
I have the app for iphone but I've recently switched to android and would love to use this on my new phone for my rc racing.
kfakouydkWed, Feb 21, 2024
United States
Ratio Calc
App needs to be updated!
nazzy5xSat, Apr 10, 2021
United States
Perfect!
Well done! I love the amount of cars you have in the library. Great tool!
KorelickSat, Apr 15, 2017
United States
Ratio Calc
Best gear ratio app, hands down!
dpjensen623Tue, May 10, 2016
United States
Simple, clean, perfect!
In a sea of mish-mashed, garbage R/C related apps, this is an aesthetic oasis. It does exactly what you downloaded it for and doesn't give you a migraine in the process. What more do you want? Hmm. Maybe a watch app? Oh yeah, the dude made that too. Excellent work.
SwanyDelightWed, Feb 24, 2016
United States
My go to gear ratio app
Been using this app for years. A must have. They add new cars very quick.
JimHfdyfgdgMon, Feb 8, 2016
United States
Thumbs up!!
Great app for on the track setups, it's an absolute must for the average to the pro racer!!!
cmr151283Sun, Sep 20, 2015
United States
Download & Revenue
About
Bundle Id
uk.co.ashdownapps.ratiocalcnoadsMin Os. Version
9.0Release Date
Thu, May 12, 2011Update Date
Sat, Feb 23, 2019Content Rating
Has IMessage
NoSupport Watch
NoSupport Siri
NoFile Size
11.56MBHas Game Center
NoFamily Sharing
NoSupport Passbook
NoSupported Languages
English, German, Italian, SpanishWhat's New
version
6.6updated
5 years ago-Support for the latest devices and iOS -Improved the database update process to show more details -Removed the text erasing buttons on the text fields when editing notes -Moved the gear and diameter pickers up so that the results can be seen whilst changing the settings -Updated database and manufacturers -Various other little tweaks and improvements Enjoy your R/C racing!
Newsletter
Subscribe our newsletter and get useful information every week.
Publisher's Other Apps
Other Sports Apps
Similar Apps
Stay Ahead of the Market with StoreSpy
Start NowNever miss opportunities
Watch your competitors closely
Start boosting your app right away