# Bike Gear Calculator GearRatio — #1 Bike Gear Calculator App > Bike gear calculator for optimizing performance and estimating travel time. (iPhone/iPad app by Gaurav Kumar.) - Source: https://appshunter.io/ios/app/bike-gear-calculator-gearratio/id1114307131 (this page in markdown: same URL + `.md`) - Developer: [Gaurav Kumar](https://appshunter.io/developer/936361950) - Category: Sports, Utilities - Price: Free - Rating: 4.70/5 from 189 App Store ratings · 54 written reviews indexed - Age rating: 4+ - Requires: iOS 8.0 · 4 MB - Languages: American English, French (France), German (Germany), Italian, Japanese, Russian, Chinese (Simplified, China), European Spanish, Chinese (Traditional, Taiwan) - Released: 2016-05-16 - Data updated: 2026-06-10 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/bike-gear-calculator-gearratio/id1114307131/reviews.md ## What is Bike Gear Calculator GearRatio? Optimize your bike to suit your style. Calculate Gear Inches, Gear Ratio, Development , Cadence in single screen. Let, know how many minutes you need to travel certain KM/Mile. Upgrade and you can save charts for future reference. ## Key features - Gear Inches calculation - Gear Ratio calculation - Development calculation - Cadence calculation - Single screen interface - Travel time estimation - Save charts for reference ## Recent user reviews (10 of 54) All indexed reviews: https://appshunter.io/ios/app/bike-gear-calculator-gearratio/id1114307131/reviews.md ### 5/5 — Great app *2025-03-01, version 2.0* Great app does everything it needs to very easy ### 1/5 — Waste of time *2024-06-21, version 2.0* This app is a complete waste of time . What is the use of it ? ### 5/5 — 20.150 *2024-05-31, version 2.0* Greatest ### 5/5 — Gear inches *2024-03-27* This is an easy to use and accurate calculator for determining and comparing gear inches. Possibly becoming a lost art or a metric understood by fewer riders these days, gear inches are still the best method to building an efficient drive train. ### 2/5 — 52T support *2023-12-12* With 12 speed, cassettes tool simply must support up to a 52T in order to be fully useful. Also, the jumps and tire sizes are too great. There’s quite a big difference between a 50 mm and a 56 mm tire for example. ### 5/5 — don't do the math! *2023-06-22, version 2.0* comprehensive. drills the information down to speed & cadence. compares metrcs. nice ### 5/5 — Gear gear calculator app *2023-06-21* This is an excellent app for figuring out what gearing you need and what speed you can peddle with a certain combination. Various measurements, ratio, gain, gear inches. ### 5/5 — Awesome Sauce! *2023-04-23* It’s everything you can need or want for gearing. Thank you. This saved me a lot of time, money and aggravation. Simple format is easy to use. Also worth noting the high chain ring count other apps do not incorporate.. ### 5/5 — Great app love it *2022-12-18, version 2.0* Love it , a lot of détails and information ### 5/5 — Great tool *2022-12-01, version 2.0* Really helped me to understand after switching from an 11-32 to 12-25 cassette. ## Frequently asked questions about Bike Gear Calculator GearRatio ### What does the Bike Gear Calculator app do? This app helps cyclists optimize their bike's performance by calculating essential metrics like Gear Inches, Gear Ratio, Development, and Cadence. It provides these calculations on a single, easy-to-use screen. Additionally, it can estimate the time needed to travel a certain distance. ### What are the key features of the Bike Gear Calculator app? Key features include instant calculations for Gear Inches, Gear Ratio, Development, and Cadence, all displayed on one screen. It also offers travel time estimation for specific distances and the ability to save charts for future reference through an upgrade. ### Is the Bike Gear Calculator app free to use? The core functionality of the app, including the single-screen calculations for Gear Inches, Gear Ratio, Development, and Cadence, is available for free. However, advanced features like saving charts for future reference require an upgrade. ### Who is the target audience for this app? This app is designed for cyclists of all levels who want to understand and optimize their bike's gearing. Whether you're a road cyclist, mountain biker, or commuter, this tool can help you fine-tune your setup for better performance and efficiency. ### How can I use this app to improve my cycling? By understanding your Gear Inches, Gear Ratio, Development, and Cadence, you can make informed decisions about your bike's components or adjust your riding style. This can lead to more efficient pedaling, better climbing ability, and improved overall performance on your rides. ## Version history (last 5 releases) ### 2.0 — 2018-09-05 This app has been updated by Apple to display the Apple Watch app icon. Sprocket update for latest bikes. ### 1.3 — 2016-12-03 Updated for iOS 10 ### 1.2 — 2016-08-30 Ring the bell. Please rate & review us to support for new features. ### 1.1 — 2016-07-18 First app to support Sprocket sizes upto 50 teeth for new bikes like Sram's new 12 speed 10-50 cassette. ### 1.0 — 2016-05-16 No release notes. ## Apps similar to Bike Gear Calculator GearRatio | App | Rating | Price | Category | | --- | --- | --- | --- | | [myETraining](https://appshunter.io/ios/app/myetraining/id672249377) | 4.1 (457) | Free | Sports | | [ROTOR Power](https://appshunter.io/ios/app/rotor-power/id1216141058) | — | Free | Sports | | [MTB Gear Ratio](https://appshunter.io/ios/app/mtb-gear-ratio/id1508922825) | 3.0 (1) | Free | Sports | | [MyCampy-EPS](https://appshunter.io/ios/app/mycampy-eps/id1078964167) | 4.1 (216) | Free | Sports | | [Tour Tracker Pro Cycling](https://appshunter.io/ios/app/tour-tracker-pro-cycling/id638270049) | 4.8 (6,687) | Free | Sports | | [FirstCycling](https://appshunter.io/ios/app/firstcycling/id1522001844) | 5.0 (3) | Free | Sports | ## More apps by Gaurav Kumar - [Bike Gear Calculator : Bike Gears, Cycling Gear](https://appshunter.io/ios/app/bike-gear-calculator-bike-gears-cycling-gear/id936361951) - [DoxieMoji - Dachshund Love Weinermoji & Stickers](https://appshunter.io/ios/app/doxiemoji-dachshund-love-weinermoji-and-stickers/id1195337675) - [LabMojis - Labrador Retriever Emoji & Stickers](https://appshunter.io/ios/app/labmojis-labrador-retriever-emoji-and-stickers/id1252065243) All apps by Gaurav Kumar: https://appshunter.io/developer/936361950 --- *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 2026-06-10.*