Kilowatts to Amps Converter
Convert kilowatts (kW) to amps (A). This calculates the electrical current drawn by a high-power load. You must provide the system voltage and AC characteristics.
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Kilowatt ↔ Ampere
kW
A
Calculation Formula
(1,000 kW × 1000) ÷ (120 V × 1 PF) = 8,333.33 A
Worked Example
Convert 5 kW to amps at 240V (Single-Phase, PF=1):
(5 kW × 1,000) ÷ (240 V × 1.0) = 20.83 Amps
Kilowatt to Ampere Table
| kW | A (at 120V) | A (at 230V) |
|---|---|---|
| 1 kW | 8.333 A | 4.348 A |
| 2 kW | 16.667 A | 8.696 A |
| 5 kW | 41.667 A | 21.739 A |
| 10 kW | 83.333 A | 43.478 A |
| 15 kW | 125 A | 65.217 A |
| 20 kW | 166.67 A | 86.957 A |
| 50 kW | 416.67 A | 217.39 A |
Understanding the Conversion
Because a kilowatt is 1,000 watts, you must first convert kW to watts before dividing by voltage to find the current in amps.
Size your backup power system.
Use these converted ratings to determine exactly what size generator or battery bank you need.