2,500 Watts to Amps, How Many Amps Is 2,500 Watts?
2,500 Watts equals 20.83 amps at 120V or 10.42 amps at 240V. Common 2500W devices: Electric oven element, table saw.
2,500 Watts Amps at Every Voltage
| Voltage | Single Phase | Three Phase |
|---|---|---|
| 120V | 20.83A | 12.03A |
| 208V | 12.02A | 6.94A |
| 240V | 10.42A | 6.01A |
| 277V | 9.03A | 5.21A |
| 480V | 5.21A | 3.01A |
The Formula
Single Phase: Amps = Watts ÷ Volts. For 2,500 Watts at 120V: 2500 ÷ 120 = 20.83A.
Three Phase: Amps = Watts ÷ (Volts × 1.732). For 2,500 Watts at 240V 3-phase: 2500 ÷ (240 × 1.732) = 6.01A.
With power factor: Amps = Watts ÷ (Volts × PF). A PF of 0.8 increases the current draw by 25%.
Wire and Breaker for 2,500 Watts at 120V
At 120V, 2,500 Watts draws 20.8A. Recommended: 10 AWG copper wire with a 30A breaker per NEC 310.16. For continuous loads (3+ hours), apply 125% rule. Use our Wire Size Calculator for exact sizing.
Common 2500W Devices
Electric oven element, table saw. Always check the device nameplate for exact wattage, rated watts may differ from actual consumption.
Disclaimer: Calculations are for reference. Verify with device nameplate. Consult a licensed electrician for installations.