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Wire Size Calculator

Find the correct AWG wire gauge based on current, distance, and voltage drop.

Recommended gauge
Gauge
AWG 12
Cross-section
3.31 mmยฒ
Ampacity
20 A
Actual voltage drop
2.6%
All gauges
AWGmmยฒMax AV drop%
142.08154.97V4.1%
123.31203.13V2.6%
105.26301.97V1.6%
88.37401.24V1%
613.3550.78V0.7%
421.15700.49V0.4%
233.62950.31V0.3%
142.411100.24V0.2%
1/053.51250.19V0.2%
2/067.41450.15V0.1%
3/0851650.12V0.1%