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Voltage Drop Calculator

Calculate voltage drop in electrical circuits and find recommended wire gauge.

Wire Length (feet)

Current (amps)

Voltage (V)

Wire Gauge (AWG)

Phase

Voltage Drop

6.352 V

Voltage Drop %

5.29%

Wire Specifications

Wire

12 AWG

Resistance

1.588 Ω/kft

Max Amps

20 A

Recommended Wire Gauge

8 AWG (50A max)

Based on < 3% voltage drop and ampacity rating