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1,800 watts to amps
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15.0 A
1,800 watts at 120 V · 7.5 A at 240 V
1,800 watts to amps by voltage
| Voltage | Amps |
|---|---|
| 12 V DC | 150.0 A |
| 24 V DC | 75.0 A |
| 120 V | 15.0 A |
| 208 V | 8.7 A |
| 230 V | 7.8 A |
| 240 V | 7.5 A |
A = W ÷ V (resistive load). Breakers should carry no more than 80% of rating continuously.
FAQ
How many amps is 1,800 watts?
1,800 W ÷ 120 V = 15.0 A; at 240 V it is 7.5 A.
Can a 1,800 W appliance run on a 15 A or 20 A circuit?
At 120 V it draws 15.0 A: needs a 20 A circuit (16 A continuous limit).
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