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25 amps to watts
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3,000 W
25 amps at 120 V · 6,000 W at 240 V
25 amps to watts by voltage
| Voltage | Watts | kW |
|---|---|---|
| 12 V DC | 300 W | 0.30 kW |
| 24 V DC | 600 W | 0.60 kW |
| 120 V | 3,000 W | 3.00 kW |
| 208 V | 5,200 W | 5.20 kW |
| 230 V | 5,750 W | 5.75 kW |
| 240 V | 6,000 W | 6.00 kW |
| 208 V three-phase (PF 0.9) | 8,106 W | 8.11 kW |
| 480 V three-phase (PF 0.9) | 18,706 W | 18.71 kW |
Single-phase: W = A × V (power factor 1). Three-phase: W = √3 × A × V × PF; motors and electronics have PF below 1.
FAQ
How many watts is 25 amps?
25 A × 120 V = 3,000 W; at 240 V it is 6,000 W. Watts = amps × volts for resistive single-phase loads.
What breaker do I need for a 25 amp load?
For a continuous load (3+ hours) the NEC sizes the breaker at 125%: 31.25 A → next standard size 35 A. Check local code.
Wire size for a 35 A circuit · Ohm’s law calculator · All amps to watts
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