Voltage drop calculator

Based on Canadian Electrical Code (CEC) C22.1 — Rule 8-102

Circuit details

System voltage

Phase

Load current (A)

One-way distance (m)

Wire size (AWG / kcmil)

Conductor material

Circuit type

CEC Rule 8-102: branch circuits max 3% VD; feeders max 2% VD; combined max 5%.

Results

Voltage drop

—V

Voltage drop %

—%

Receiving-end voltage

—V

Conductor resistance

—mΩ/m

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Min. wire size to meet CEC limit

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Resistance values based on CEC Table 47 (copper) and Table 47A (aluminum), DC resistance at 75 °C. For AC circuits with large conductors, reactance may also contribute to voltage drop. Consult a licensed electrician for critical or commercial installations.