DC
kW = A x V / 1000
Real power conversion
Amps to kW Calculator
Convert current into kilowatts for DC, single-phase, and balanced three-phase circuits using voltage and power factor.
Interactive calculator
Amps to kW Calculator
Result
1.20 kW
W = A x V / 1000
Live electrical power flow
DC values update as you type.
Formula
How amps convert to kilowatts
Calculate watts first, then divide by 1000.
Single-phase AC
kW = A x V x PF / 1000
Three-phase AC
kW = sqrt(3) x A x V x PF / 1000
Worked examples
Practical amps to kW examples
Use these results as a quick formula check.
Applications and safety
Use power estimates responsibly
Real power supports planning but does not replace electrical design.
FAQ
Amps to kW questions
Answers to common real-power conversion questions.
What is the amps to kW formula?
For DC, kW equals amps times volts divided by 1000. AC calculations also include power factor; balanced three-phase includes the square root of three.
Why is power factor needed?
It converts apparent electrical power into real power in kilowatts.
Can I use line voltage for three phase?
Yes. Use line voltage with the balanced three-phase formula.
Does this calculate motor starting power?
No. It estimates running real power; starting conditions require separate assessment.
Can I use this for generator planning?
It is useful for a first estimate, then confirm power factor, duty cycle, and starting loads.
What is 10 A at 230 V?
At unity power factor it is 2.30 kW; at PF 0.8 it is 1.84 kW.
Are kW and kVA the same?
Only at PF 1. Otherwise kW is lower than kVA.
Can the result size a breaker?
No. Protection design also needs code, conductor, and equipment information.
What values should I enter?
Use measured values or the equipment nameplate whenever possible.
Is this a final design?
Use it as an engineering estimate and verify final work with applicable standards.
Related calculators
Continue with complete tools
Only published calculator pages appear here.