Kilowatts and ampere are two different quantities of electricity. While the former quantifies the amount of power consumed by a load at any instant the latter quantifies the amount of current drawn by the load. You can use the following calculator to calculate Kilowatts from amperes. Enter the amperes, voltage, type of voltage and power factor for calculation.
Ampere to kilowatt converter
| Enter Ampere | |
| Enter Voltage | |
| Enter power factor | |
| Kilowatts |
How to convert ampere to kilowatt?
Since ampere (A or amps) is a measure of current and kilowatts (kw) is the measure of kilowatts, ampere cannot be directly converted into kilowatts or vice versa. Below are the formulae used to convert ampere to kilowatt.
One kilowatt = 1000 watts
DC – kW calculation
For any DC circuit, Power in kilowatts = Vdc x Idc / 1000
Where Vdc is the applied DC voltage and Idc is the current.
Therefore, kilowatts can be calculated from ampere by multiplying the applied voltage by the current and dividing the product by 1000.
Single Phase AC – kW calculation
For any single-phase AC circuit, Power kW = (Vac x P.F. x Iac) / 1000
Where Vac is the RMS value of the applied AC voltage and P.F. is the power factor of the load.
Therefore, for calculating kW in single-phase AC, divide the product of the RMS value of applied AC voltage, current and power factor by 1000.
Three Phase AC – kW to amps
For a three-phase AC circuit, if the line to line voltage is known, kilowatts can be calculated from ampere using the following formula.
For any three-phase AC circuit, Power kW = (√3 x VL x P.F. x IL ) / 1000
Where VL and IL are the RMS value of the applied line voltage and line current respectively and P.F. is the power factor of the load
Therefore, kw can be calculated dividing the product of √3, RMS value of applied line voltage, power factor and current by 1000.
For a three-phase AC circuit, if the phase voltage is known, kW can be calculated using the following formula.
For any three-phase AC circuit, Power kW = (3 x Vph x P.F. x IL ) / 1000
Where Vph and IL are the RMS value of the applied phase voltage and line current respectively and P.F. is the power factor of the load
Therefore, kw can be calculated by dividing 3 times the product RMS value of applied line voltage, power factor, and current by 1000.