Amps to Kilowatts Calculator

The power factor (PF) indicates the ratio of working power measured in kilowatts (kW) to actual power which is measured in kilovolt amps (kVA). An AC power calculator will determine which circuit you’ll require for electrical equipment or when working with single or three-phase circuits. Our online AC power calculator can help you convert electrical power into current and vice-versa for single-phase and three-phase electric power.

How to Use This Calculator?

To calculate AC power in kilowatts, you’ll need to figure out whether you are using a single-phase or three-phase current. If you’re using a 3-phase current, you’ll need to know what its type is; they are either line-to-line or line-to-neutral. The type is crucial for 3-phase power calculator amps to kw. 

AC Power Calculator

What Is Single-Phase Electric Power?

Single-phase power is simply a two-wire alternating current (ac). It consists of one power wire (the phase wire) and a neutral wire. The current in the power circuit will flow between the power wire and the neutral wire. 

How to Calculate Single-Phase Power?

This is the AC single phase amps to watts calculation formula used by our AC wattage calculator:

• P = PF × I × U

where:

P-Power 

PF-Power factor

I-Electrical current

U-Voltage

What Is Three-Phase AC Power?

3-phase power systems provide 3 separate currents. 3-phase power works by the voltage and currents being 120 degrees on the wires. This means that it is used for heavy-duty electrical uses. It is more economical than the single-phase power system. 

How to Calculate 3-Phase Power?

3-phase formula calculator

• P = V x I x PF x square root of 3

What Is the Power Factor?

Power factor or PF is the ratio of working power measured in kilowatts or kW to apparent power measured in kilovolt amps or kVA. Apparent power is the amount of power required to operate devices and machinery during a specific time period.

How to Calculate Power Factor?

To calculate power factor, a power meter is required to measure the kW (working power) and the kVA (apparent power).

To calculate the power factor formula is:

• Multiply (kVA = V x A)

kVA = apparent power

V = voltage

A = amperes

Converting kW to Amps

If you want to convert kilowatts to amps, the equation is straightforward.

The formula:

• I = P / (square root of 3 x PF x V)

I = amps

P = related power in watts

PF = power factor

V = voltage

Converting Amps to kW

The latter equation can also be done in reverse if you want to convert amps to kilowatts. We will use the following formula:

• P = square root of 3 x PF x I x V

P = power

PF = power factor

I = amps

V = voltage

The number of watts tends to be large numbers so we will measure it in kilowatts. For example, 1500 W = 1.5 kW.

Conclusion

If you want to get precise measurements without any hassle — use our online AC power calculator, as it will help you find the supplies for your systems.

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