Watts to Amp Calculator

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How do Amps, Volts, and Watts work?

Amps:

Amps are a unit of measurement for electric current flow. 

Volts:

Volts are the unit used to determine the amount of force required to generate an electric current. 

Watts:

Amperes multiplied by Volts equals Watts, the unit of measurement used to determine energy. The greater the wattage, the greater the output and power of the appliance. 

How to convert watts to amps?

To convert electrical power to electrical current (Watts to Amps), the following equation must be used:

BASIC FORMULA: I = P / V

DC Watts to Amps Calculation:

Current in amps (A) equals power in watts (W) divided by voltage in volts (V):

I = P / V

AC (Single Phase) Watts to Amps Calculation:

The phase current I in amps (A) equals the power P in watts (W), divided by the power factor PF multiplied by the RMS voltage V in volts:

I = P / (PF × V)

AC (Three Phase) Watts to Amps Calculation:

Calculation using voltage from line to line:

The phase current I in amps (A) equals the power P in watts (W) divided by the square root of three times the power factor PF multiplied by the line-to-line RMS voltage VL-L in volts:

I = P / (√3 × PF × VL-L)

Calculation using voltage from line to neutral:

The phase current I in amps (A) equals the power P in watts (W) divided by three times the power factor PF multiplied by the line-to-neutral RMS voltage VL-N in volts:

I = P / (3 × PF × VL-N)

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