This calculator is very useful for converting amps to watts easily and quickly.
How to use this calculator first choose Select current type (DC = Direct Current, AC = Alternating Current Single Phase / Three Phase), then fill the Amps, voltage and other values, then press the Calculate button to get the power value to generate watts.
How to Calculate Amps to Watts?
DC = Direct Current
DC (A) to (W) calculation
| Formula P(W) |
= |
I(A) |
x |
V(V) |
Power P in watts (W) equals current I in amp (A), multiplied by voltage V in volts.
AC = Alternating Current
AC single phase (A) to (W) calculation
| Formula P(W) |
= |
PF |
x |
I(A) |
x |
V(V) |
AC three phase (A) to (W) calculation
Line to line voltage
| Formula P(W) |
= |
√3 |
x |
PF |
x |
I(A) |
x |
VL-L(V) |
Line to neutral voltage
| Formula P(W) |
= |
3 |
x |
PF |
x |
I(A) |
x |
VL-N(V) |
Equivalent Amps and Watts at 12v DC
| Current |
Power |
Voltage |
| 0.4167 Amps |
5 Watts |
12 Volts |
| 0.8333 Amps |
10 Watts |
12 Volts |
| 1.25 Amps |
15 Watts |
12 Volts |
| 1.667 Amps |
20 Watts |
12 Volts |
| 2.083 Amps |
25 Watts |
12 Volts |
| 2.5 Amps |
30 Watts |
12 Volts |
| 2.917 Amps |
35 Watts |
12 Volts |
| 3.333 Amps |
40 Watts |
12 Volts |
| 3.75 Amps |
45 Watts |
12 Volts |
| 4.167 Amps |
50 Watts |
12 Volts |
| 5 Amps |
60 Watts |
12 Volts |
| 5.833 Amps |
70 Watts |
12 Volts |
| 6.667 Amps |
80 Watts |
12 Volts |
| 7.5 Amps |
90 Watts |
12 Volts |
| 8.333 Amps |
100 Watts |
12 Volts |
| 9.167 Amps |
110 Watts |
12 Volts |
| 10 Amps |
120 Watts |
12 Volts |
| 10.833 Amps |
130 Watts |
12 Volts |
| 11.667 Amps |
140 Watts |
12 Volts |
| 12.5 Amps |
150 Watts |
12 Volts |
| 13.333 Amps |
160 Watts |
12 Volts |
| 14.167 Amps |
170 Watts |
12 Volts |
| 15 Amps |
180 Watts |
12 Volts |
| 15.833 Amps |
190 Watts |
12 Volts |
| 16.667 Amps |
200 Watts |
12 Volts |
| 17.5 Amps |
210 Watts |
12 Volts |
| 18.333 Amps |
220 Watts |
12 Volts |
| 19.167 Amps |
230 Watts |
12 Volts |
| 20 Amps |
240 Watts |
12 Volts |
| 20.833 Amps |
250 Watts |
12 Volts |
Equivalent Amps and Watts at 120v AC
| Current |
Power |
Voltage |
| 0.4167 Amps |
50 Watts |
120 Volts |
| 0.8333 Amps |
100 Watts |
120 Volts |
| 1.25 Amps |
150 Watts |
120 Volts |
| 1.667 Amps |
200 Watts |
120 Volts |
| 2.083 Amps |
250 Watts |
120 Volts |
| 2.5 Amps |
300 Watts |
120 Volts |
| 2.917 Amps |
350 Watts |
120 Volts |
| 3.333 Amps |
400 Watts |
120 Volts |
| 3.75 Amps |
450 Watts |
120 Volts |
| 4.167 Amps |
500 Watts |
120 Volts |
| 5 Amps |
600 Watts |
120 Volts |
| 5.833 Amps |
700 Watts |
120 Volts |
| 6.667 Amps |
800 Watts |
120 Volts |
| 7.5 Amps |
900 Watts |
120 Volts |
| 8.333 Amps |
1000 Watts |
120 Volts |
| 9.167 Amps |
1100 Watts |
120 Volts |
| 10 Amps |
1200 Watts |
120 Volts |
| 10.833 Amps |
1300 Watts |
120 Volts |
| 11.667 Amps |
1400 Watts |
120 Volts |
| 12.5 Amps |
1500 Watts |
120 Volts |
| 13.333 Amps |
1600 Watts |
120 Volts |
| 14.167 Amps |
1700 Watts |
120 Volts |
| 15 Amps |
1800 Watts |
120 Volts |
| 15.833 Amps |
1900 Watts |
120 Volts |
| 16.667 Amps |
2000 Watts |
120 Volts |
| 17.5 Amps |
2100 Watts |
120 Volts |
| 18.333 Amps |
2200 Watts |
120 Volts |
| 19.167 Amps |
2300 Watts |
120 Volts |
| 20 Amps |
2400 Watts |
120 Volts |
| 20.833 Amps |
2500 Watts |
120 Volts |
