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Example of Amps to Watts Calculations
To convert amps (A) to watts (W), you need to know the voltage (V). The formula to convert amps to watts is:
Watts=Amps×Volts
Assuming a common voltage of 120V for these calculations.
Table of Amps to Watts Conversions
Below is a table showing the conversion of various amp values to watts, sorted from smallest to largest, assuming a voltage of 120V.
| Amps (A) | Voltage (V) | Watts (W) |
| 1.20 | 120.00 | 144.00 |
| 1.50 | 120.00 | 180.00 |
| 2.00 | 120.00 | 240.00 |
| 2.10 | 120.00 | 252.00 |
| 2.40 | 120.00 | 288.00 |
| 2.50 | 120.00 | 300.00 |
| 3.00 | 120.00 | 360.00 |
| 3.10 | 120.00 | 372.00 |
| 3.40 | 120.00 | 408.00 |
| 3.50 | 120.00 | 420.00 |
| 4.00 | 120.00 | 480.00 |
| 4.50 | 120.00 | 540.00 |
| 4.80 | 120.00 | 576.00 |
| 5.00 | 120.00 | 600.00 |
| 6.00 | 120.00 | 720.00 |
| 6,50 | 120.00 | 780.00 |
| 7.00 | 120.00 | 840.00 |
| 7.50 | 120.00 | 900.00 |
| 8.00 | 120.00 | 960.00 |
| 8.50 | 120.00 | 1020.00 |
| 9.00 | 120.00 | 1080.00 |
| 10.00 | 120.00 | 1200.00 |
| 11.00 | 120.00 | 1320.00 |
| 12.00 | 120.00 | 1440.00 |
| 12.50 | 120.00 | 1500.00 |
| 13.00 | 120.00 | 1560.00 |
| 14.00 | 120.00 | 1680.00 |
| 15.00 | 120.00 | 1800.00 |
| 16.00 | 120.00 | 1920.00 |
| 18.00 | 120.00 | 2160.00 |
| 20.00 | 120.00 | 2400.00 |
| 25.00 | 120.00 | 3000.00 |
| 30.00 | 120.00 | 3600.00 |
| 40.00 | 120.00 | 4800.00 |
| 50.00 | 120.00 | 6000.00 |
| 60.00 | 120.00 | 7200.00 |
| 100.00 | 120.00 | 12000.00 |
| 120.00 | 120.00 | 14400.00 |
| 150.00 | 120.00 | 18000.00 |
| 200.00 | 120.00 | 24000.00 |
Convert 10 Amps to Watts
To convert 10 amps to watts at 120V:
Watts=10×120=1200 W
Convert 15 Amps to Watts
To convert 15 amps to watts at 120V:
Watts=15×120=1800 W
Convert 20 Amps to Watts
To convert 20 amps to watts at 120V:
Watts=20×120=2400 W