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Welcome to 120 volts to watts, our post about the 120 volt to watt conversion.
Here we show you how to convert one hundred and twenty volts to watts using the formulas for DC as well as AC circuits.
If you have been wondering how many watts is 120 volts, or if you have been looking for 120v in watts, then you are definitively right here. 🙂
We not only explain you the conversion of 120 volts to watts, but also feature a voltage to watt calculator you will like.
How many Watts is 120 Volts
The answer to the question how many watts is 120 volts depends on the flow of electric charge, either one-directional in direct current (DC), or bidirectional in case of alternating current (AC).
In case of 120 volts in an AC circuit, the power factor PF and number of phases make a difference, in addition to the connection scheme of the wires in case of 3-phase AC.
See the 120 volts to watts formulas in the next section, and make sure to check out our converter which you can find after the voltage to wattage example calculations.
120 Volts to Watts Conversion
To convert 120 volts to watts, determine your electric current in amperes (A), then apply the formula below which corresponds to your circuit:
AC, 1 Phase: W = PF × [A] × [120 V]
AC, 3 Phase, Line to Line (L-L): W = √3 × PF × [A] × [120 V]
AC, 3 Phase, Line to Neutral (L-N): W = 3 × PF × [A] × [120 V]
To learn what the power factor, line to line and line to neutral voltage in the context of changing 120 volts to watts stand for, read our article volts to watts, located in the header menu.
For the example 120 volts to watts conversions below, we assume a power factor of 0.5 and an electric current of 1.5 amperes. Therefore, for 120v to watts we get:
- Direct current (DC): W = [1.5 A] × [120 V] = 180 watts
- Alternating current (AC), 1 Phase: W = 0.5 × [1.5 A] × [120 V] = 90 watts
- Alternating current (AC), 3 Phases, L-L: W = √3 × 0.5 × [1.5 A] × [120 V] = 155.88 W
- Alternating current (AC), 3 Phases, L-N: W = 3 × 0.5 × [1.5 A] × [120 V] = 270 watts
Remember, these values for 120 volts in watts are example calculations under the assumption PF = 0.5 and I = 1.5 A. For your power factor, amperage and circuit, use our calculator.
Enter 120 in the Volts field, then choose your circuit from the drop-down menu. If requested, insert the PF. Next, in the Amps field, enter your electric current, then hit Convert.
If you wish to start 120 volts to watts over, first hit Reset, then proceed as explained above.
Besides 120 volt to watt, similar voltage to power conversions on our site include:
In the next section of our 120 volt to watt post, you can find the FAQs in the context, the instructions for using our custom search form, as well as the summary of 120v to watts.
120v to Watts
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