Volts to Watts Calculator
Convert voltage and current to power in watts.
How to Convert Volts to Watts
Volts (V) to watts (W) conversion requires current (I) via P = V × I, as volts measure electric potential and watts measure power.
DC Volts to Watts Calculation
W = V × I
W = Power in watts
V = Voltage in volts
I = Current in Amperes
Quick Trick: Power (W) = Voltage (V) × Current (I)!
AC Single Phase Volts to Watts Calculation
W = PF × V × 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 = √3 × PF × VL-L × I
W = Power in watts
PF = Power Factor
VL-L = Line to line voltage in Volts
I = Current in Amperes
Quick Trick: Use √3 for three-phase calculations!
Calculation with Line to Neutral Voltage
W = 3 × PF × VL-N × 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.
