Voltage Drop Calculator

Calculate voltage drop in volts and percent, voltage at the load, conductor-path resistance, and I²R loss for DC, single-phase, or balanced three-phase circuits.

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Advanced assumptions

Calculated result

Calculated voltage drop

1.998 V · 1.665%

Within your editable planning target

Delivered voltage
118.002 V
Path resistance
0.09988 Ω
Power loss
39.954 W

Planning result only; verify ampacity, protection, installation method, and local rules separately.

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