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Voltage Drop Calculator

Price voltage drop for single- and three-phase runs.

Inputs

Inputs and assumptions

Current on the run.

One-way run length.

12 AWG is 6530; 10 AWG 10380; 8 AWG 16510; 6 AWG 26240.

12.9 copper, 21.2 aluminum.

Nominal voltage.

Result

Drop, single-phase
6.32 V
Drop %, single-phase
5.3 %
Drop, three-phase
5.47 V
Drop %, three-phase
4.6 %
Screening tool. Verify against the NEC as adopted locally, the AHJ, nameplate data, and metered conditions before acting.

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Workspace

Keep the assumptions with the result.

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