900 Watts to Amps
900 watts is 7.5 amps at 120 volts and 3.75 amps at 240 volts (amps = watts ÷ volts, at unity power factor). Every common voltage below.
900 Watts to Amps conversion table
| Voltage | Amps (PF 1.0) | Amps (PF 0.8) |
|---|---|---|
| 12 V DC | 75 A | — |
| 24 V DC | 37.5 A | — |
| 48 V DC | 18.8 A | — |
| 120 V AC | 7.5 A | 9.38 A |
| 208 V AC | 4.33 A | 5.41 A |
| 240 V AC | 3.75 A | 4.69 A |
| 277 V AC | 3.25 A | 4.06 A |
| 480 V AC | 1.88 A | 2.34 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 900 watts?
Frequently asked questions
7.5 amps (900 W ÷ 120 V). On a circuit, a 900 W resistive load needs at least a 15 A breaker — and 25% more if it runs 3+ hours continuously.
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