Calculate Electrical Power: Amps to Watts Conversion Made Simple!
The power P in watts (W) is equal to the current I in amps (A), times the voltage V in volts (V):
P(W) = I(A) × V(V)
The power P in watts (W) is equal to the power factor PF times the phase current I in amps (A), times the RMS voltage V in volts (V):
P(W) = PF × I(A) × V(V)
The power P in watts (W) is equal to square root of 3 times the power factor PF times the phase current I in amps (A), times the line to line RMS voltage VL-L in volts (V):
P(W) = √3 × PF × I(A) × VL-L(V)
The power P in watts (W) is equal to 3 times the power factor PF times the phase current I in amps (A), times the line to neutral RMS voltage VL-N in volts (V):
P(W) = 3 × PF × I(A) × VL-N(V)
Do not use typical power factor values for accurate calculations.
| Device | Typical power factor |
|---|---|
| Resistive load | 1 |
| Fluorescent lamp | 0.95 |
| Incandescent lamp | 1 |
| Induction motor full load | 0.85 |
| Induction motor no load | 0.35 |
| Resistive oven | 1 |
| Synchronous motor | 0.9 |
| Current (A) | Voltage (V) | Power (W) |
|---|---|---|
| 0.1 amps | 120 volts | 12 watts |
| 0.2 amps | 120 volts | 24 watts |
| 0.3 amps | 120 volts | 36 watts |
| 0.4 amps | 120 volts | 48 watts |
| 0.5 amps | 120 volts | 60 watts |
| 0.6 amps | 120 volts | 72 watts |
| 0.7 amps | 120 volts | 84 watts |
| 0.8 amps | 120 volts | 96 watts |
| 0.9 amps | 120 volts | 108 watts |
| 1 amps | 120 volts | 120 watts |
| 2 amps | 120 volts | 240 watts |
| 3 amps | 120 volts | 360 watts |
| 4 amps | 120 volts | 480 watts |
| 5 amps | 120 volts | 600 watts |
| 6 amps | 120 volts | 720 watts |
| 7 amps | 120 volts | 840 watts |
| 8 amps | 120 volts | 960 watts |
| 9 amps | 120 volts | 1080 watts |
| 10 amps | 120 volts | 1200 watts |
Using the Amps to Watts Calculator is straightforward. Simply enter the value in Amperes (A) into the designated field, then press the "Calculate" or "Convert" button. The calculator will instantly provide you with the equivalent value in Watts (W). It's a handy tool for understanding electrical power consumption and is widely used in various applications.