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This Calculator will determine the minimum size conductor needed based on a 3% Voltage Drop. It does not take into consideration other factors such as minimum ampacity based on the National Electric Code Table 310-16. ( Allowable ampacitys of conductors ). Consult The Electrical Code for further details.

Please enter your values:

120 Volts ......... Copper.......... Single Phase
208 Volts ......... Aluminum ....... Three Phase
240 Volts
277 Volts
480 Volts


Distance in feet, one-way

Total amperage of circuit



This is your minimum wire size.

"Voltage Drop Calculator" by Nick Debaggis.

 Safety Sheets .Utility Co. Specs .Online Voltage Cal .ELECTRIC FORMULAS .CUSTOMER CHECKLIST

Trinity Technologies is not responsible for any
erros in the use of this online calulator

TRINITY TECHNOLOGIES LLC
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