Power Calculator & DC, AC Power Calculation Formula

Power calculator & Power Calculation Formula:

Enter any 2 values to find remaining.

Our power calculator calculates power in watts, current in Amps, the voltage in volts, and resistance in Ohms. Also, here you can calculate DC Power, AC Power and Energy & power calculator.

Just enter the two values of any parameter, to get remaining two. i.e if you enter current and power means, you get resistance and voltage.

DC Power formula:

Let us consider

I_(A) = current in Amps

V_(V) = Voltage in Volts

P_(W) = Real power in Watts

R_(Ω) = Resistance in Ohms

We have used for the below formula to find DC voltage, DC current, DC Power and Resistance,

V_(V) = I_(A) × R_(Ω)

P_(W) = V_(V) × I_(A) = V ²_(V) / R_(Ω) = I ²_(A) × R_(Ω)

AC Complex Power formula:

Enter any two values of current or Impedance or voltage and Complex power, press calculate button.

AC single-phase voltage formula

V_(V) = I_(A) × Z_(Ω) = (|I|×|Z|) ∠ (θ_I + θ_Z)

AC single phase Complex formula,

S_(VA) = V_(V) × I_(A) = (|V|×|I|) ∠ (θ_V – θ_I)

AC single phase reactive power formula,

Q_(VAR) = V_(V) × I_(A) × sin φ

Power factor formula,

PF = |cos φ|