500 Watts to Amps
500 watts is 4.17 amps at 120 volts and 2.08 amps at 240 volts (amps = watts ÷ volts, at unity power factor). Every common voltage below.
500 Watts to Amps conversion table
| Voltage | Amps (PF 1.0) | Amps (PF 0.8) |
|---|---|---|
| 12 V DC | 41.7 A | — |
| 24 V DC | 20.8 A | — |
| 48 V DC | 10.4 A | — |
| 120 V AC | 4.17 A | 5.21 A |
| 208 V AC | 2.4 A | 3 A |
| 240 V AC | 2.08 A | 2.6 A |
| 277 V AC | 1.81 A | 2.26 A |
| 480 V AC | 1.04 A | 1.3 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 500 watts?
Frequently asked questions
4.17 amps (500 W ÷ 120 V). On a circuit, a 500 W resistive load needs at least a 15 A breaker — and 25% more if it runs 3+ hours continuously.
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