Watt Calculator
Calculates electrical power in watts from voltage and current.
Lilu Baba's Watt Calculator computes electrical power instantly from voltage and current using P = VI.
How to use this calculator
- Enter the voltage.
- Enter the current.
- Power in watts updates instantly.
Power (Watts)
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FAQ
Watt Calculator — frequently asked questions
Power (Watts) = Voltage × Current.
The concept of power (energy per time) is the same, but this specific formula is for electrical circuits — see our separate Power Calculator for the mechanical version.