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How to convert amps to kilowatts
How to convert electric current in amps (A) to electric power in kilowatts (kW).
You can calculate kilowatts from amps and volts, but you can't convert amps to kilowatts since kilowatts and amps units do not measure the same quantity.
DC amps to kilowatts calculation formula
The power P in kilowatts is equal to the current I in amps, times the voltage V in volts divided by 1000:
P(kW) = I(A) × V(V) / 1000
So kilowatts are equal to amps times volts divided by 1000:
kilowatt = amp × volt / 1000
or
kW = A × V / 1000
Example
What is power consumption in kW when the current is 3A and the voltage supply is 110V?
Answer: the power P is equal to current of 3 amps times the voltage of 110 volts, divided by 1000.
P = 3A × 110V / 1000 = 0.33kW
AC single phase amps to kilowatts calculation formula
The power P in kilowatts is equal to the power factor PF times the current I in amps, times the voltage V in volts divided by 1000:
P(kW) = PF × I(A) × V(V) / 1000
So kilowatts are equal to power factor times amps times volts divided by 1000:
kilowatt = PF × amp × volt / 1000
or
kW = PF × A × V / 1000
Example
What is power consumption in kW when the power factor is 0.8 and the current is 3A and the voltage supply is 110V?
Answer: the power P is equal to power factor of 0.8 times current of 3 amps times voltage of 110 volts, divided by 1000.
P = 0.8 × 3A × 110V / 1000 = 0.264kW
AC three phase amps to kilowatts calculation formula
The power P in kilowatts is equal to square root of 3 times the power factor PF times the current I in amps, times the voltage V in volts divided by 1000:
P(kW) = √3 × PF × I(A) × V(V) / 1000
So kilowatts are equal to square root of 3 times power factor PF times amps times volts divided by 1000:
kilowatt = √3 × PF × amp × volt / 1000
or
kW = √3 × PF × A × V / 1000
Example
What is power consumption in kW when the power factor is 0.8 and the current is 3A and the voltage supply is 110V?
Answer: the power P is equal to square root of 3 times power factor of 0.8 times current of 3 amps times the voltage of 110 volts, divided by 1000.
P = √3 × 0.8 × 3A × 110V / 1000 = 0.457kW
How to convert kilowatts to amps ►
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