Voltage Drop Calculator

Enter the values and press the Calculate button.

Enter your values:

Distance in feet, one-way:
Total amperage of circuit:

Result:

This is your minimum wire size

Voltage drop calculator

Voltage drop calculator is used to estimate the voltage drop of a circuit. Calculations are based on resistance and reactance data from the Electrical Code (NEC). The Estimated Resistance tab performs calculations based on estimated resistance data for the wire size.
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About This Calculator
Created at  2024/6/21
Updated :
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Author:
Dianthe
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