Watts to amps
1000 W at 120 V = 8.33 A
For any other value: A = W ÷ V
Calculator
8.33 A
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You can leave the unit in: 100 W is fine.
Watts and amps are not the same quantity: without the voltage there is no conversion. Any page giving you a single number is assuming one.
Watts to amps chart
The values people look up most.
| watts | amps |
|---|---|
| 1000 W | 8.33 A |
| 1500 W | 12.5 A |
| 500 W | 4.17 A |
| 1800 W | 15 A |
| 3000 W | 25 A |
| 400 W | 3.33 A |
| 1200 W | 10 A |
| 4500 W | 37.5 A |
| 2000 W | 16.67 A |
| 1400 W | 11.67 A |
| 5000 W | 41.67 A |
| 10 W | 0.0833 A |
| 100 W | 0.833 A |
| 200 W | 1.67 A |
| 600 W | 5 A |
| 300 W | 2.5 A |
| 3500 W | 29.17 A |
| 10000 W | 83.33 A |
| 150 W | 1.25 A |
| 800 W | 6.67 A |
| 1300 W | 10.83 A |
| 1600 W | 13.33 A |
| 4000 W | 33.33 A |
| 6000 W | 50 A |
| 7500 W | 62.5 A |
| 120 W | 1 A |
| 750 W | 6.25 A |
| 5500 W | 45.83 A |
| 20 W | 0.167 A |
| 1700 W | 14.17 A |
Formula
A = W ÷ V
Where this number comes from
This factor is exact, not rounded. P = V·I is how the SI defines the watt, not an approximation.
Source: The International System of Units (SI Brochure), BIPM (Bureau International des Poids et Mesures).
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