Easily convert measurements between inches and millimeters. This straightforward tool simplifies length conversions for everyday use.




249+ iOS apps curated and reviewed
From beginner-friendly picks to power-user tools, our convert mm to inches list covers 249+ iPhone apps updated through August 2026. Compare ratings, prices, and screenshots in one place.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 4.6★ (175) | Yes | No | Oct 2026 | ||
| 2 | Free | 4.8★ (200K) | Yes | Yes | Nov 2026 | ||
| 3 | $2.99 | 4.4★ (13) | No | No | Oct 2026 | ||
| 4 | Free | 4.8★ (72) | Yes | No | Oct 2026 | ||
| 5 | $0.99 | 3.0★ (3) | No | No | Oct 2026 | ||
| 6 | $0.99 | 3.6★ (14) | No | No | Oct 2026 | ||
| 7 | Free | 4.0★ (1) | No | No | May 2026 | ||
| 8 | $0.99 | 5.0★ (2) | No | No | May 2026 |




Easily convert measurements between inches and millimeters. This straightforward tool simplifies length conversions for everyday use.






Easily convert between a wide range of units across 20 categories, including length, weight, temperature, and more. Features live currency updates for 155 world currencies, refreshed daily. Designed for simplicity and visual appeal.





Easily convert measurements between inches and millimeters. Supports decimal and fractional results with customizable rounding options. Save and email your conversion history.