Electric Power Calculator

Calculate the power and monthly consumption of your electrical devices with detailed explanations.

Power: W

What is Electric Power?

Electric power (P) is the rate at which electrical energy is consumed or produced. It is expressed in watts (W), where:

1 W = 1 V × 1 A

Fundamental Formulas

  • P = V × I (for DC circuits)
  • P = V × I × cos(φ) (for single-phase AC)
  • Energy (kWh) = (P × hours)/1000
  • Cost = Energy × Energy cost

Involved Quantities

  • Voltage (V): the electric potential difference.
  • Current (A): the flow of electric charge.
  • Power (W): energy consumed per unit of time.
  • Energy (kWh): usage over time.
  • Hours: daily usage time.
  • Cost per kWh: based on your electricity rate.

Knowing these values helps you better estimate your electricity bill and make informed energy-saving decisions.

beppicandido@outlook.com
beppicandido@outlook.com
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