Kw To Amps Calculator
Convert kilowatts (kW) to amperes (A) based on voltage, power factor, and phase type. Ideal for electrical engineering, wiring, and load calculations.
Published by:
isCalculator Editorial Team
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How to use this tool?
How to Use the kW to Amps Calculator
- Select the Phase – Choose Single-phase, Three-phase, or DC from the dropdown.
- Enter Power (kW) – Input the power in kilowatts (e.g., 10). Must be a positive number.
- Enter Voltage (V) – Input the voltage in volts (e.g., 400). Must be a positive number.
- Enter Power Factor – For AC phases, enter a value between 0 and 1 (e.g., 0.9). This field is hidden for DC.
- Click "Calculate" – The result shows the current in amperes (A) along with the formula used.
Note: All inputs must be positive numbers. The power factor is only required for single-phase and three-phase calculations. The result is displayed in amperes (A) with two decimal places.
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Frequently Asked Questions
For single-phase AC: I = (P × 1000) / (V × PF). For three-phase: I = (P × 1000) / (√3 × V × PF). For DC: I = (P × 1000) / V.
Power factor (PF) is the ratio of real power to apparent power, ranging from 0 to 1. It is 1 for DC and resistive loads, and less than 1 for inductive loads.
Yes, as long as you enter the correct voltage (line-to-line for three-phase). Ensure consistent units.