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Wire Size calculator

Source Voltage: 120 240 480	Number of Phases: Single-Phase 3-Phase
*Amperes:	One Way Distance (feet):
Allowable Voltage Drop: 3% of source 5% of source Volts

Result

Wire Size:

Copper

Aluminum

A wire size calculator is used to determine the appropriate gauge (thickness) of electrical wire for a specific application. The components of the wire size calculator include source voltage (120, 240, 480), number of phases (single-phase or double-phase), amperes, and allowable voltage drop. This calculator works both as an AC wire size calculator and a DC wire size calculator.

The formulas are as follows:

For single-phase circuits:

Wire Circular Mils =Conductor Resistivity)(2)(Amps)(One Way Distance in Feet)/ Allowable Voltage Drop

For 3-phase circuits:

Wire Circular Mils =(Conductor Resistivity)(2)(Amps)(One Way Distance in Feet)(.866)/ Allowable Voltage Drop

Can a wire size calculator account for different types of wire materials, like copper and aluminum?

Yes, wire size calculators can calculate for all types of cables, including the ones with copper and aluminum conductors.

How do environmental factors like temperature affect wire size calculations?

Temperature can influence the conductivity and current-carrying capacity of a wire.

Is a wire size calculator applicable for both residential and industrial applications?

Yes, they are applicable for both, but the specific requirements (like adherence to different safety standards or codes) may vary between residential and industrial applications.

Can a wire size calculator help in ensuring compliance with electrical codes?

While they can provide a good starting point, compliance with local electrical codes often requires additional considerations. It’s always recommended to cross-reference calculator results with the relevant electrical codes.