This engineering calculator helps determine belt length, ratio, RPM, and belt speed for pulley systems. It offers instant calculations with copyable results and includes formulas for reference.
Pulley Calculator Easy by YAVUZ BULAMADIK





249+ iOS apps curated and reviewed
Every iPhone needs a few good pulley calculator apps. We benchmark 249+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | — | No | No | Jun 2026 | ||
| 2 | Free | — | No | No | May 2026 | ||
| 3 | $2.99 | 3.7★ (34) | No | No | Oct 2026 | ||
| 4 | $0.99 | 4.6★ (16) | No | No | Oct 2026 | ||
| 5 | Free | — | No | No | May 2026 | ||
| 6 | $1.99 | — | No | No | Aug 2026 | ||
| 7 | $1.99 | 1.3★ (3) | No | No | Oct 2026 | ||
| 8 | Free | 4.6★ (806) | No | Yes | Oct 2026 |












This engineering calculator helps determine belt length, ratio, RPM, and belt speed for pulley systems. It offers instant calculations with copyable results and includes formulas for reference.