HP to Amps Calculator
Convert horsepower to amperes. Select voltage and phase for motor amp draw calculations.
HP
V
PF
Motor Amps
—Amps
Watts—
KVA—
HP to Amps Formula
Single Phase: Amps = (HP × 746) ÷ (Volts × Efficiency × PF). Three Phase: Amps = (HP × 746) ÷ (Volts × 1.732 × Efficiency × PF).
| HP | 120V 1Φ | 240V 1Φ | 480V 3Φ |
|---|---|---|---|
| 1 | 8.0 | 4.0 | 1.3 |
| 3 | 24 | 12 | 3.9 |
| 5 | 40 | 20 | 6.5 |
| 10 | 80 | 40 | 13 |
| 25 | — | 100 | 32.5 |