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Power & current

kW to amps calculator

Convert kilowatts to amps for DC, single-phase or balanced three-phase.

Your values

Example values are prefilled. Replace them with your own.

Supply type
kW
V

RMS for AC; line-to-line for three-phase.

PF

Enter the load’s power factor, greater than 0 and at most 1.

Result

kW to amps
Ready

– – –

Enter your values and press Calculate result.
FormulaI = kW × 1,000 ÷ (V × PF)

Within this model

Electrical input power only. AC is sinusoidal steady-state. For three-phase, enter total power and line-to-line RMS voltage; the load must be balanced. AC uses true power factor. This does not select cable, breaker or supply capacity.

What the numbers mean

A kilowatt is 1,000 watts. The supply type changes the power-current relationship, so select it explicitly. Current calculated here describes the entered operating conditions, without any allowance for starting behaviour or a changing load.

Formula reference: Schneider Electric · Electrical Installation Guide ↗

A worked example

2.3 kW × 1,000 ÷ (230 V × 1) = 10 A for single-phase AC.

Validation, precision and limitations

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