1,800 Watts to Amps
1,800 watts is 15 amps at 120 volts and 7.5 amps at 240 volts (amps = watts ÷ volts, at unity power factor). Every common voltage below.
1,800 Watts to Amps conversion table
| Voltage | Amps (PF 1.0) | Amps (PF 0.8) |
|---|---|---|
| 12 V DC | 150 A | — |
| 24 V DC | 75 A | — |
| 48 V DC | 37.5 A | — |
| 120 V AC | 15 A | 18.8 A |
| 208 V AC | 8.65 A | 10.8 A |
| 240 V AC | 7.5 A | 9.38 A |
| 277 V AC | 6.5 A | 8.12 A |
| 480 V AC | 3.75 A | 4.69 A |
PF = power factor. Resistive loads (heaters, incandescent lights) are PF 1.0; motors and compressors typically run PF 0.8-0.9. For a different value, use the interactive converter.
What draws about 1,800 watts?
Frequently asked questions
15 amps (1,800 W ÷ 120 V). On a circuit, a 1,800 W resistive load needs at least a 15 A breaker — and 25% more if it runs 3+ hours continuously.
Ask AI about this
Open an AI assistant with a question grounded in this page.