Amps to kW Calculator is an online conversion tool used to calculate kW from amps. The amps to kW calculator below can be used to calculate kW from Amps in all three types of AC Circuits including Single phase AC, Two Phase AC, and Three Phase AC Circuits. It can be used to calculate kW from Amps in DC Circuits as well.
List of Contents
Amps to kW Formulas
DC Circuit Amps to kW Formula
Formula Equation: kW= (E ∗I)/1000
Where: kW = kilowatts; E = Volts; I = Amps
A 110-volt DC motor draws a current of 10 amps. Find the kilowatts.
Solution
From Formula: kilowatts = (Volts * Amperes)/1000 = (110 * 10)/1000 = 1.1 kW
Single Phase Amps to kW Formula
kW= (E ∗I ∗PF)/1000
Where: kW = kilowatts; E = Volts; I = Amps; PF = Power Factor
A single phase, 110 volt AC motor draws 10 amp current and has power factor of 85%. Find the kilowatts.
Solution
From Formula: kilowatts = (Volts * Amperes * Power Factor)/1000 = (110 * 10 * 0.85)/1000 = 0.935 kW
Two Phase-Four Wire Amps to kW Formula
kW= (E ∗I ∗PF ∗2)/1000
Where: kW = kilowatts; E = Volts; I = Amps; PF = Power Factor
A two phase, 230 volt circuit having power factor of 90% draws 20 amps current. Find the kilowatts.
Solution:
From Formula: kilowatts = (Volts * Amperes * Power Factor * 2)/1000 = (230 * 20 * 0.9 * 2)/1000 = 8.28 kW
Three Phase Amps to kW Formula
kW= (E ∗I ∗PF ∗1.73)/1000
Where: kW = kilowatts; E = Volts; I = Amps; PF = Power Factor
A three phase, 440 volt AC motor draws 20 amperes and has power factor of 85%. Find the kilowatts.
Solution:
From Formula: kilowatts = (Volts * Amperes * Power Factor * 1.73)/1000 = (440 * 20 * 0.85 * 1.73)/1000 = 12.94 kW