245+ iOS apps curated and reviewed
Out of 245+ conduit fill capacity calculator apps on iOS, 15 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.0★ (1) | No | No | Aug 2026 | |
| 2 |  | Free | 4.5★ (746) | No | No | Oct 2026 | |
| 3 |  | Free | 4.5★ (4) | No | Yes | Oct 2026 | |
| 4 |  | Free | 3.7★ (3) | No | Yes | Oct 2026 | |
| 5 |  | Free | 3.0★ (2) | No | No | Oct 2026 | |
| 6 |  | Free | 4.0★ (3) | No | Yes | Sep 2026 | |
| 7 |  | $4.99 | 3.3★ (3) | No | No | Aug 2026 | |
| 8 |  | Free | — | No | Yes | Aug 2026 |
Easily determine the maximum number of data cables that can fit within a conduit of a specific size. Input your conduit dimensions and desired fill ratio to get an instant calculation.
This tool assists electricians, engineers, and contractors in determining the correct conduit size based on NEC guidelines. It calculates conduit fill percentages and jam probability, saving time compared to manual calculations.
This professional calculator helps licensed electricians perform complex NEC code calculations for conduit fill, voltage drop, wire sizing, and more. It offers multiple NEC code years and provides inspector-ready PDF exports with project management features. Designed for offline use in the field.
