Accurately converting Amps (Current) to kilowatts (Power) is vital for electrical safety and system sizing. Our calculator is designed for this precision. It handles DC, Single-Phase AC, and Three-Phase AC systems, accounting for the crucial Power Factor (PF)
Amps to kW Calculator
Result:
Enter values and click Calculate.
Related: kW to Amps Calculator
How to Convert Amps to kW
Converting Amps (A) to kilowatts (kW) is not a direct conversion. You must know the Voltage (V) of the circuit. For AC circuits, you also need the Power Factor (PF), which measures electrical efficiency.
⚡ Formulas to Convert Amps (I) to Kilowatts (PkW)
🔋 Direct Current (DC)
PkW = (I × V) / 1000💡 Single-Phase Alternating Current (AC)
PkW = (I × V × PF) / 1000🔌 Three-Phase Alternating Current (AC)
Using Line-to-Line Voltage (VL-L):
PkW = (√3 × I × VL-L × PF) / 1000Using Line-to-Neutral Voltage (VL-N):
PkW = (3 × I × VL-N × PF) / 1000Key Variables
| Variable | Unit | Description |
|---|---|---|
| PkW | Kilowatts (kW) | Real Power |
| I | Amperes (A) | Current |
| V | Volts (V) | Voltage |
| PF | (Unitless) | Power Factor (0 to 1) |
How to use our Amps to kW Calculator
Our calculator simplifies complex electrical math into three easy steps.
- Select Circuit Type: Choose between DC, AC (Single Phase), or AC (Three Phase). This instantly loads the correct formula and required fields.
- Input Values: Enter your measured or known values for Current (Amps) and Voltage (Volts). If you select an AC circuit, the Power Factor (PF) field will appear.
- Calculate: Click the “Calculate kW” button. The result instantly displays the Real Power in kilowatts (kW), giving you the accurate electrical load.
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