Calculate wire resistance based on gauge and length. It also determines the minimum wire gauge required for specific voltage drop, length, and material.
Wire Gauge Calculator by Paul Pollock

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Looking for free wire gauge calculator apps? 17 of our 222+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 1.0★ (1) | No | No | May 2026 | ||
| 2 | Free | 4.6★ (1.5K) | No | No | Sep 2026 | ||
| 3 | Free | 4.2★ (6) | No | No | Jul 2026 | ||
| 4 | Free | 4.9★ (13) | Yes | Yes | Sep 2026 | ||
| 5 | Free | 4.7★ (69) | No | Yes | Sep 2026 | ||
| 6 | $0.99 | 5.0★ (1) | No | No | Aug 2026 | ||
| 7 | $1.99 was $2.99 | — | No | Yes | Sep 2026 | ||
| 8 | Free | 4.5★ (746) | No | No | Sep 2026 |

Calculate wire resistance based on gauge and length. It also determines the minimum wire gauge required for specific voltage drop, length, and material.






Calculate the appropriate wire size for electrical circuits. This tool helps determine wire size based on voltage drop and current carrying capacity, ensuring compliance with NEC ampacity limits.






This app assists aircraft mechanics in selecting the correct American Wire Gauge (AWG) for aircraft wiring. It calculates wire size based on circuit length, current, voltage, temperature, and derating factors, referencing FAA guidelines.