Welcome to the Voltage Drop Formula website. We hope to provide you with the best online voltage drop calculator, as well as all relevant information regarding voltage drop formulas, equations, and calculations, and more!

Calculate Voltage Drop

Select your system type and voltage

Select the wire gauge

Enter the voltage (V)

Enter the current (A)

Enter the distance and unit

Feet Meters

Calculate 

Results

These calculations are performed assuming a copper, stranded wire.

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