Calculate BMX gear ratios and compare different gear combinations with an interactive chart. This app works offline and includes a comprehensive list of popular tire sizes for accurate roll-out calculations.
BMX Gear Calculator by Shane Jenkins

249+ iOS apps curated and reviewed
Looking for free bmx gear calculator apps? 14 of our 249+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | $1.99 | 3.6★ (9) | No | No | Oct 2026 | ||
| 2 | Free | 5.0★ (4) | No | No | Oct 2026 | ||
| 3 | Free | 3.1★ (7) | No | Yes | Oct 2026 | ||
| 4 | Free | — | No | Yes | May 2026 | ||
| 5 | Free | 1.0★ (1) | No | Yes | Sep 2026 | ||
| 6 | Free | 4.0★ (1) | No | No | May 2026 | ||
| 7 | $2.99 | 5.0★ (1) | No | No | Sep 2026 | ||
| 8 | $0.99 | 4.2★ (12) | No | No | Oct 2026 |

Calculate BMX gear ratios and compare different gear combinations with an interactive chart. This app works offline and includes a comprehensive list of popular tire sizes for accurate roll-out calculations.

Instantly analyze your bicycle's drivetrain performance. Calculate gear ratios, speed at any cadence, and climbing limits based on your bike's components and power output. Ideal for cyclists planning rides or optimizing their setup.






Optimize your bicycle's gearing with this comprehensive calculator. Analyze gear ratios, calculate speed at cadence, and manage custom configurations. Features include component browsing, sharing options, and helpful articles.