kW ↔ Amps Converter
Instant conversion at any voltage and phase — transparent math, with generator-sizing context.
kW
Voltage
Phase
0.80
0.701.00
Three-phase generators are conventionally rated at 0.8 power factor.
Result
150.4A
I = 100 kW × 1000 ÷ (√3 × 480 V × 0.8) = 150.4 A
Common generator sizes at 480 V · 3φ · PF 0.80
| Generator | Full-load amps |
|---|---|
| 20 kW | 30.1 A |
| 50 kW | 75.2 A |
| 100 kW | 150.4 A |
| 150 kW | 225.5 A |
| 200 kW | 300.7 A |
These amps drive your transfer-switch and feeder sizing. Not sure what kW you need? Run the 60-second finder
This tool is a planning aid. It does not replace final engineering review, AHJ determination, or a formal quote. Verify requirements with your AHJ and a licensed engineer.