# RunCalc: Altitude & Pace — Run - Race Altitude Converter > Converts race times based on altitude using NCAA models. (iPhone/iPad app by Nathan Lambson.) - Source: https://appshunter.io/ios/app/runcalc-altitude-and-pace/id1375199927 (this page in markdown: same URL + `.md`) - Developer: [Nathan Lambson](https://appshunter.io/developer/1049870965) - Category: Sports, Health & Fitness - Price: Free - Rating: 5.00/5 from 16 App Store ratings · 3 written reviews indexed - Age rating: 4+ - Requires: iOS 18.2 · 1 MB - Languages: English - Released: 2018-07-25 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/runcalc-altitude-and-pace/id1375199927/reviews.md ## What is RunCalc? Convert race times across any altitude — instantly. Pick your start and finish track from 190+ NCAA venues, or enter any custom elevation. RunCalc applies a per-distance altitude correction and shows your equivalent time, broken-down splits, and Riegel projections in one tap. Built for distance and middle-distance runners, track and cross country coaches, and college recruiters comparing PRs across venues. WHY RUNCALC The NCAA normalizes race times so collegiate athletes can be compared across venues at different altitudes. Most runners only see those numbers at formal meets. RunCalc puts the math in your pocket — useful for training, recruiting, and pacing on race day. FEATURES • Altitude time conversion — sea level to Albuquerque, Boston to Boulder, anywhere to anywhere • 190+ NCAA tracks, indoor and outdoor, with verified elevations • Custom altitudes — enter any elevation in feet or meters • Pace splits — 200m, 400m, 1k, or mile intervals for any race distance • Equivalent times — Riegel projections from 100m through marathon • Conversion history — save, revisit, and share past calculations • GPS proximity — RunCalc detects nearby tracks and offers to use them • Favorite tracks — star the venues you use most so they pin to the top • Imperial or metric HOW IT WORKS RunCalc applies a per-distance altitude correction above 2000 feet, aligned with the Daniels Oxygen Power tables — the same family the NCAA used historically. Sprints (100–400m) are largely unaffected. Longer races take a larger penalty as VO2max declines with elevation. We are not affiliated with the NCAA. PRIVACY No accounts. No analytics. No advertising. No tracking. Location is used only on-device to detect nearby tracks — it is never transmitted. Made by a runner, for runners. Got a feature request or bug? Email runcalcapps@gmail.com ## Key features - Altitude conversions for 800m to 10000m races - NCAA-modeled conversion standards - Simple and easy-to-use interface - Free to download and use - Regular feature updates based on user feedback ## Recent user reviews (3 of 3) All indexed reviews: https://appshunter.io/ios/app/runcalc-altitude-and-pace/id1375199927/reviews.md ### 5/5 — Great app! *2021-01-06* Had a lot of trouble finding a website or app that allows you to go from altitude to sea level rather than sea level to altitude. I live in Denver, so this works perfectly for pacing when doing some out of state races. Love it, thank you! ### 5/5 — Only Conversion for Track *2018-06-25* This is the only app I can find for track conversion. I know there are some bugs at first but this will be really helpful!! ### 5/5 — Great app *2018-06-22* A helpful tool that is easy to use! ## Frequently asked questions about RunCalc ### What running distances does Race Time Altitude Conversion support? Race Time Altitude Conversion supports conversions for 800m, 1500m, Mile, 3000m, 3200m, 5000m, and 10000m races. ### What conversion model does Race Time Altitude Conversion use? The app uses conversions modeled after NCAA standards. However, it is not affiliated with the NCAA. ### Is Race Time Altitude Conversion free to use? Yes, Race Time Altitude Conversion is completely free to download and use, with no in-app purchases or ads. ### What devices is Race Time Altitude Conversion available on? Race Time Altitude Conversion is available on iPhones and iPods. ### How often is Race Time Altitude Conversion updated? The app was last updated on July 25, 2018, with version 1.0.2. Future updates will be based on user feedback and bug reports. ### What is the age rating for Race Time Altitude Conversion? Race Time Altitude Conversion has an age rating of 4+, making it suitable for a wide range of users. ### How can I report a bug or suggest a feature for Race Time Altitude Conversion? You can report bugs or suggest features by emailing the developer directly at runcalcapps@gmail.com. ### Does Race Time Altitude Conversion require an internet connection to work? The provided data does not specify if an internet connection is required. However, typically, conversion tools like this can function offline. ## Version history (last 4 releases) ### 1.3.0 — 2026-05-02 Altitude conversion algorithm improvements against fresh reference data captured this spring. Conversions are noticeably more accurate at NCAA altitude venues — Adams State, Air Force, Northern Arizona, Wyoming, Colorado, Albuquerque, BYU and the rest of the high-altitude circuit. ### 1.0.2 — 2018-07-25 This app has been updated by Apple to display the Apple Watch app icon. Fixed a logical error which happens sometimes when entering an altitude but not entering a race time. Fixed a crash when trying to scroll through the list of university tracks when the search bar is active but there is no search text Updated app description and info button to include support email address, runcalcapps@gmail.com ### 1.0.1 — 2018-06-27 Improved search functionality, better iPhone X support, more tappable buttons, more events. ### 1.0 — 2018-06-21 No release notes. ## Apps similar to RunCalc | App | Rating | Price | Category | | --- | --- | --- | --- | | [CBBTennis](https://appshunter.io/ios/app/cbbtennis/id1583910120) | — | Free | Sports | | [Spald](https://appshunter.io/ios/app/spald/id1583396100) | — | Free | Sports | | [Golf Performance](https://appshunter.io/ios/app/golf-performance/id1585630680) | — | Free | Sports | | [Old Saybrook Tennis](https://appshunter.io/ios/app/old-saybrook-tennis/id1585673580) | 3.0 (2) | Free | Sports | | [SG Schwarzatal](https://appshunter.io/ios/app/sg-schwarzatal/id1578470320) | — | Free | Sports | | [Sagehens](https://appshunter.io/ios/app/sagehens/id1577630675) | 4.5 (2) | Free | Sports | ## Related topics [1500m](https://appshunter.io/ios/topics/1500m) --- *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.*