Volts to Watts Calculator
Convert voltage and current to power in watts.
Table of Contents
How to Convert Volts to Watts
Volts (V) to watts (W) conversion requires current (I) via P = V ร I, as volts measure electric potential and watts measure power.
DC Volts to Watts Calculation
W = V ร I
W = Power in watts
V = Voltage in volts
I = Current in Amperes
Quick Trick: Power (W) = Voltage (V) ร Current (I)!
AC Single Phase Volts to Watts Calculation
W = PF ร V ร I
W = Power in watts
PF = Power Factor
V = Voltage in volts
I = Current in Amperes
Quick Trick: Multiply by the Power Factor for AC calculations!
AC Three Phase Volts to Watts Calculation
Calculation with Line to Line Voltage
W = โ3 ร PF ร VL-L ร I
W = Power in watts
PF = Power Factor
VL-L = Line to line voltage in Volts
I = Current in Amperes
Quick Trick: Use โ3 for three-phase calculations!
Calculation with Line to Neutral Voltage
W = 3 ร PF ร VL-N ร I
W = Power in watts
PF = Power Factor
VL-N = Line to neutral voltage in Volts
I = Current in Amperes
Quick Trick: Multiply by 3 for line to neutral calculations!
What Do These Terms Really Mean?
Watt (W) – A Unit of Power
Watts are a standard unit of power. Here’s what you need to know:
- Used to measure the rate of energy transfer.
- 1 watt is equal to one joule per second.
Voltage (V) – A Measure of Electric Potential
Voltage is the difference in electric potential between two points. Here’s what you need to know:
- Measured in volts (V).
- 1 volt is the potential difference that will move one coulomb of charge against one joule of energy.
Current (I) – A Measure of Flow of Electric Charge
Current is the flow of electric charge. Here’s what you need to know:
- Measured in amperes (A).
- 1 ampere is the flow of one coulomb of charge per second.
For more information, visit the Wikipedia page on Watts.
