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.
Conduit Fill Capacity Calculator by TE Connectivity Corporation


246+ iOS apps curated and reviewed
Out of 246+ conduit fill capacity calculator apps on iOS, 16 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 | Sep 2026 | ||
| 3 | Free | 3.7★ (3) | No | Yes | Aug 2026 | ||
| 4 | Free | 4.5★ (4) | No | Yes | Sep 2026 | ||
| 5 | $4.99 | 3.3★ (3) | No | No | Aug 2026 | ||
| 6 | Free | 3.0★ (2) | No | No | Sep 2026 | ||
| 7 | Free was $2.99 | — | No | Yes | Aug 2026 | ||
| 8 | Free | 4.0★ (3) | No | Yes | Sep 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 app provides professional electricians with a suite of tools for electrical calculations, including conduit fill, junction box fill, and voltage drop. It offers detailed breakdowns, code references, and offline functionality for job site reliability. Generate PDF reports for documentation and inspections.