Электрический power in watts (W) to Электрический current in amps (A) Калькулятор.
* Use e for scientific notation. E.g: 5e3, 4e-8, 1.45e12
Watt (W) is a unit of power. Power is the rate of energy usage per Время unit. One watt (W) is equal to one joule (J) per second (S).
Ampere (A) is a unit of Электрический current. Electric current is the rate of electric charge flow per Время unit. One ampere (A) is equal to one coulomb (Q) per second (s).
The current I in amps (A) is equal to the power P in watts (W), divided by the voltage V in volts (V):
P = 200W, V = 40V
The phase current I in amps (A) is equal to the power P in watts (W), divided by the power factor PF times the RMS voltage V in volts (V):
The power factor of resistive impedance load is equal to 1.
P = 2000W, V = 110V, PF = 0.8
The phase current I in amps (A) is equal to the power P in watts (W), divided by square root of 3 times the power factor PF times the line to line RMS voltage VL-L in volts (V):
The power factor of resistive impedance load is equal to 1.
The phase current I in amps (A) is equal to the power P in watts (W), divided by 3 times the power factor PF times the line to neutral RMS voltage VL-N in volts (V):
The power factor of resistive impedance load is equal to 1.
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 |
| Power (W) | Voltage (V) | Current (A) |
|---|---|---|
| 10 watts | 120 volts | 0.0833 amps |
| 20 watts | 120 volts | 0.167 amps |
| 30 watts | 120 volts | 0.250 amps |
| 40 watts | 120 volts | 0.333 amps |
| 50 watts | 120 volts | 0.417 amps |
| 60 watts | 120 volts | 0.500 amps |
| 70 watts | 120 volts | 0.583 amps |
| 80 watts | 120 volts | 0.667 amps |
| 90 watts | 120 volts | 0.750 amps |
| 100 watts | 120 volts | 0.833 amps |
| 200 watts | 120 volts | 1.667 amps |
| 300 watts | 120 volts | 2.500 amps |
| 400 watts | 120 volts | 3.333 amps |
| 500 watts | 120 volts | 4.167 amps |
| 600 watts | 120 volts | 5.000 amps |
| 700 watts | 120 volts | 5.833 amps |
| 800 watts | 120 volts | 6.666 amps |
| 900 watts | 120 volts | 7.500 amps |
| 1000 watts | 120 volts | 8.333 amps |
