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Converting volts to watts is an essential task in many electrical applications. The conversion requires knowledge of the current in amperes. The formula to convert volts (V) to watts (W) is:
W = V×A
Where:
Here is a table showing examples of volts to watts conversions with currents of 1, 2, and 4 amperes.
Volts (V) |
Watts (W) at 1 Ampere (A) |
Watts (W) at 2 Amperes (A) |
Watts (W) at 4 Amperes (A) |
1.00 |
1.00 |
2.00 |
4.00 |
1.10 |
1.10 |
2.20 |
4.40 |
1.20 |
1.20 |
2.40 |
4.80 |
1.30 |
1.30 |
2.60 |
5.20 |
1.35 |
1.35 |
2.70 |
5.40 |
1.40 |
1.40 |
2.80 |
5.60 |
1.50 |
1.50 |
3.00 |
6.00 |
5.00 |
5.00 |
10.00 |
20.00 |
5.00 |
5.00 |
10.00 |
20.00 |
9.00 |
9.00 |
18.00 |
36.00 |
10.00 |
10.00 |
20.00 |
40.00 |
12.00 |
12.00 |
24.00 |
48.00 |
19.50 |
19.50 |
39.00 |
78.00 |
20.00 |
20.00 |
40.00 |
80.00 |
24.00 |
24.00 |
48.00 |
96.00 |
100.00 |
100.00 |
200.00 |
400.00 |
110.00 |
110.00 |
220.00 |
440.00 |
115.00 |
115.00 |
230.00 |
460.00 |
120.00 |
120.00 |
240.00 |
480.00 |
125.00 |
125.00 |
250.00 |
500.00 |
220.00 |
220.00 |
440.00 |
880.00 |
230.00 |
230.00 |
460.00 |
920.00 |
240.00 |
240.00 |
480.00 |
960.00 |
300.00 |
300.00 |
600.00 |
1200.00 |
360.00 |
360.00 |
720.00 |
1440.00 |
600.00 |
600.00 |
1200.00 |
2400.00 |
1000.00 |
1000.00 |
2000.00 |
4000.00 |
1100.00 |
1100.00 |
2200.00 |
4400.00 |
1200.00 |
1200.00 |
2400.00 |
4800.00 |
6000.00 |
6000.00 |
12000.00 |
24000.00 |
10000.00 |
10000.00 |
20000.00 |
40000.00 |
To convert 5 volts to watts, you need to know the current in amperes. The formula to convert volts (V) to watts (W) is:
W = V×A
Where:
Assuming different current values, here are the calculations:
W = 5×1 = 5 watts
W = 5×2 = 10 watts
W = 5×4 = 20 watts
So, for 5 volts:
Assuming different current values, here are the calculations:
W = 12×1 = 12 watts
For 2 amperes (A):
W = 12×2 = 24 watts
For 4 amperes (A):
W = 12×4 = 48 watts
So, for 12 volts:
Assuming different current values, here are the calculations:
W = 120×1 = 120 watts
W = 120×2 = 240 watts
W = 120×4 = 480 watts
So, for 120 volts:
Here are the calculations:
W = 240×1 = 240 watts
W = 240×2 = 480 watts
W = 240×4 = 960 watts
So, for 240 volts: