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Kilowatts to volts calculator FullScreen

Although there is no direct conversion, determine voltage by providing additional information like current or resistance. Useful for electrical calculations and understanding power-voltage relationships. Get accurate estimations using this online tool.

Select current type:  
Enter power in kilowatts: kW
Enter current in amps: A
   
Voltage result in volts: V


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What is Kilowatts to volts calculator

Converting kilowatts (kW) to volts (V) requires knowledge of the current (I) in amps (A) and the power factor (PF) of the load. The formula for converting kilowatts to volts is:

Volts (V) = (kW x 1000) / (A x PF)

To use this formula, multiply the power in kilowatts by 1000 and divide the result by the product of the current (I) and power factor (PF).

For example, if you have a load with a power consumption of 5 kW, operating with a current of 20 A and a power factor of 0.9, you can calculate the voltage as follows:

Volts (V) = (5 kW x 1000) / (20 A x 0.9) Volts (V) ≈ 277.8 V

In this example, the load requires an approximate voltage of 277.8 volts.

Please note that the power factor (PF) is an important consideration, as it represents the ratio of real power to apparent power. If the power factor is not provided, it is common to assume a power factor of 1 (unity) for resistive loads or refer to the specifications of the specific device or system to obtain accurate power factor values.

DC kilowatts to volts calculation

The voltage V in volts (V) is equal to 1000 times the power P in kilowatts (kW), divided by the current I in amps (A):

V(V) = 1000 × P(kW) / I(A)

AC single phase kilowatts to volts calculation

The voltage V in volts (V) is equal to 1000 times the power P in kilowatts (kW), divided by the power factor PF times the current I in amps (A):

V(V) = 1000 × P(kW) / (PF × I(A) )

AC three phase kilowatts to volts calculation

The line to line RMS voltage VL-L in volts (V) is equal to 1000 times the power P in kilowatts (kW), divided by square root of 3 times the power factor PF times the current I in amps (A):

VL-L(V) = 1000 × P(kW) / (√3 × PF × I(A) )

         ≈ 1000 × P(kW) / (1.732 × PF × I(A) )

Kilowatts to volts calculator Example

To convert kilowatts (kW) to volts (V), you need to know the current (I) in amperes (A) and the power factor (PF) of the electrical system. The formula to calculate volts from kilowatts, current, and power factor is:

Volts (V) = (kW * 1000) / (A * PF)

Here's an example that demonstrates the calculation:

Let's assume you have a power factor of 0.9, a current of 20 amperes, and a kilowatt rating of 5 kW.

Volts (V) = (5 kW * 1000) / (20 A * 0.9) ≈ 277.78 V

Therefore, the voltage corresponding to a 5 kW rating with a current of 20 amperes and a power factor of 0.9 would be approximately 277.78 volts.

Please note that the power factor represents the efficiency or quality of the electrical system. The voltage calculation depends on the current and power factor, so variations in these values can affect the calculated voltage.