9 Amps to Watts
9 A = 1,080 W
9 amps at 120 volts is 1,080 watts (2,160 W at 240 V).
Step by step
- Use the formula watts = amps × volts (P = I × V).
- At 120 V: 9 × 120 = 1,080 W.
- At 240 V: 9 × 240 = 2,160 W.
Details
- At 120 V
- 1,080 W
- At 240 V
- 2,160 W
- At 230 V
- 2,070 W
- At 12 V DC
- 108 W
- Continuous load (80%) at 120 V
- 864 W
- Kilowatts at 240 V
- 2.16 kW
How it works
Power in watts equals current in amps multiplied by voltage: P = I × V. On a standard US 120 V outlet each amp delivers 120 watts; on a 240 V circuit each amp delivers 240 watts. For breakers, plan continuous loads at no more than 80% of the rating — that is why a 15 A circuit is usually limited to about 1,440 W of continuous load.
Nearby values
| Amps | Watts |
|---|---|
| 5 A | 600 W (120 V) · 1,200 W (240 V) |
| 6 A | 720 W (120 V) · 1,440 W (240 V) |
| 7 A | 840 W (120 V) · 1,680 W (240 V) |
| 8 A | 960 W (120 V) · 1,920 W (240 V) |
| 9 A | 1,080 W (120 V) · 2,160 W (240 V) |
| 10 A | 1,200 W (120 V) · 2,400 W (240 V) |
| 11 A | 1,320 W (120 V) · 2,640 W (240 V) |
| 12 A | 1,440 W (120 V) · 2,880 W (240 V) |
| 13 A | 1,560 W (120 V) · 3,120 W (240 V) |
Related conversions
Frequently asked questions
How many watts is 9 amps?
1,080 W at 120 V, or 2,160 W at 240 V.
How many watts can a 9 amp breaker handle continuously?
About 864 W at 120 V (80% of 1,080 W).
How many watts is 9 amps at 12 volts?
108 W.
How do you convert amps to watts?
Multiply the amps by the voltage. For AC motors, also multiply by the power factor.