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10 amps to watts

10 amps is 1,200 watts at 120 volts and 2,400 watts at 240 volts, at a power factor of 1.

10 amps to watts at common voltages

10 amps in watts by voltage, power factor 1
VoltageWatts, W
12 V DC120
24 V DC240
120 V1,200
240 V2,400
208 V three phase3,603
480 V three phase8,314
05,00010,000Watts, WVoltage12 V DC12 V DC, Watts: 12012024 V DC24 V DC, Watts: 240240120 V120 V, Watts: 1,2001,200240 V240 V, Watts: 2,4002,400208 V three phase208 V three phase, Watts: 3,6033,603480 V three phase480 V three phase, Watts: 8,3148,314
10 amps in watts by voltage.

The AC and three-phase rows assume a power factor of 1, as for heaters and incandescent lamps. Motors and electronics draw more current for the same watts.

How to convert 10 amps to watts

Watts = amps × volts, so 10 amps carries 1,200 watts on a 120 V circuit and 2,400 watts on a 240 V circuit. On a 12 V DC system, 10 amps is 120 watts. At a power factor of 0.8, 10 amps at 120 V delivers 960 W.

How much of a 15 or 20 amp circuit 10 amps uses

On a 120 V circuit, a 10 amp load uses 67% of a 15 amp circuit and 50% of a 20 amp circuit. A 10 amp load that runs for three hours or more should stay within 80% of the circuit rating: 12 A on a 15 amp circuit and 16 A on a 20 amp circuit. A 10 amp continuous load needs a 15 amp circuit.

Nearby values

Watts for 1 to 30 amps at 120 V and 240 V
Amps, A120 V, W240 V, W
1120240
56001,200
101,2002,400
151,8003,600
202,4004,800
303,6007,200

Appliances that draw about 10 amps

Amps to watts calculator

Convert
A
V
Phase

1 for heaters and lights; motors and electronics 0.8–0.95

Result
1,200 W
Current
10 A
Voltage
120 V
Kilowatts
1.2 kW

How it is calculated

  1. Watts = 10 × 120 = 1,200

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