Quickly calculate natural gas pipe diameters and pressure drops for installations. Supports a wide range of conditions, materials, and units, providing instant and accurate results without subscriptions or ads.





249+ iOS apps curated and reviewed
Natural Gas Pipe Size is the household name in natural gas pipe size, but it's far from the only option. We track 249+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | $6.99 | 5.0★ (1) | No | No | Oct 2026 | ||
| 2 | Free | — | No | No | Oct 2026 | ||
| 3 | $1.99 | 4.0★ (4) | No | No | Oct 2026 | ||
| 4 | Free | 5.0★ (1) | No | No | May 2026 | ||
| 5 | $0.99 | — | Yes | Yes | Jul 2026 | ||
| 6 | Free | — | No | Yes | May 2026 | ||
| 7 | Free | 3.8★ (9) | No | No | Oct 2026 | ||
| 8 | Free | — | Yes | No | May 2026 |





Quickly calculate natural gas pipe diameters and pressure drops for installations. Supports a wide range of conditions, materials, and units, providing instant and accurate results without subscriptions or ads.






This utility app simplifies gas pipe sizing by performing calculations based on BTU load, run length, and gas type. It eliminates the need for manual chart and codebook referencing, providing the minimum required pipe size quickly.