Volts to kilowatts calculator
Convert voltage in volts (V) to power in kilowatts (kW). Ideal for understanding the power consumption or generation in electrical systems. Obtain an estimation of kilowatts from volts using this practical online tool.
What is Volts to kilowatts calculator
To convert volts (V) to kilowatts (kW), you need to know the current (I) flowing through the circuit as well as the power factor (PF) of the load. The formula for converting volts to kilowatts is:
kW = (Volts (V) x Current (I) x Power Factor (PF)) / 1000
Multiply the voltage, current, and power factor together, and then divide by 1000 to obtain the power in kilowatts.
For example, if you have a circuit with a voltage of 240 volts (V), a current of 10 amps (A), and a power factor of 0.9, you can calculate the power in kilowatts as follows:
kW = (240 V x 10 A x 0.9) / 1000 kW = 2.16 kW
In this example, the power consumption in the circuit would be approximately 2.16 kilowatts.
It's important to note that the power factor represents the efficiency or quality of power utilization in the electrical system. If the power factor is not provided, you can assume a default value of 1 (unity power factor) for resistive loads where voltage and current are in phase. However, for loads with reactive components such as inductive or capacitive elements, the power factor may be lower than 1, and additional considerations may be required to accurately determine the power in kilowatts.
DC volts to kilowatts calculation formula
The power P in kilowatts (kW) is equal to the voltage V in volts (V), times the current I in amps (A) divided by 1000:
P(kW) = V(V) × I(A) / 1000
AC single phase volts to kilowatts calculation formula
The power P in kilowatts (kW) is equal to the power factor PF times the current I in amps (A), times the voltage V in volts (V) divided by 1000:
P(kW) = PF × I(A) × V(V) / 1000
AC three phase volts to kilowatts calculation formula
The power P in kilowatts (kW) is equal to square root of 3 times the power factor PF times the current I in amps (A), times the line to line RMS voltage VL-L in volts (V) divided by 1000:
P(kW) = √3 × PF × I(A) × VL-L(V) / 1000
≈ 1.732 × PF × I(A) × VL-L(V) / 1000
Volts to kilowatts calculator Example
| Voltage (V) | Resistance (R) | Current (I) | Power (kW) |
|---|---|---|---|
| 12V | 4Ω | 3A | 0.036 kW |
| 24V | 8Ω | 3A | 0.072 kW |
| 9V | 3Ω | 3A | 0.027 kW |
| 6V | 2Ω | 3A | 0.018 kW |
| 15V | 5Ω | 3A | 0.045 kW |
To convert watts (W) to kilowatts (kW), you divide the power value by 1000, since there are 1000 watts in a kilowatt.
For example, if you have a power rating of 36W, to convert it to kilowatts, you would calculate:
Power (kW) = 36W / 1000 Power (kW) = 0.036 kW
So, for the given power rating of 36W, the equivalent power is 0.036 kW.
This table provides examples of different voltage, current, and power combinations in kilowatts. You can use the same conversion method mentioned above to convert other power values from watts to kilowatts using the table as a reference.
