## Power Calculator

We are offering the Power consumption calculator, to help you calculates the electric power/ current / voltage /resistance.

- AC power calculator
- DC power calculator
- Energy & power calculator

## AC power calculator

You need to enter the 2 values to obtain the other values and hit the = button.

tOOL

## AC power calculation

The value of voltage V in volts (V) is apparently equal to the value of current I in amps (A) multiplied by the impedance Z measured in ohms (Ω).

**V _{(V)} = I_{(A)} × Z_{(Ω)} = (|I|×|Z|) ∠ (θ_{I} + θ_{Z})**

The value of complex power S in volt-amps (VA) is apparently equal to the voltage V measured in volts (V) multiplied by the value of current I measured in amps (A).

**S _{(VA)} = V_{(V)} × I_{(A)} = (|V|×|I|) ∠ (θ_{V} – θ_{I})**

The value of real power P measured in watts (W) is apparently equal to the value of voltage V measured in volts (V) multiplied by the value of current I in amps (A) multiplied by the power factor (cos *φ*).

**P _{(W)} = V_{(V)} × I_{(A)} × cos φ**

The value of reactive power Q measured in volt-amps reactive (VAR) is apparently equal to the value of voltage V in volts (V) multiplied by the current I in amps (A) time the value of sine of the complex power phase angle (*φ*):

**Q _{(VAR)} = V_{(V)} × I_{(A)} × sin φ**

The value of power factor (FP) is apparently equal to the absolute value of cosine with the complex power phase angle (*φ*):

**PF = |cos φ|**

## DC power calculator

All you need is to enter 2 values to obtain other values then hit the = button.

tOOL

## DC power calculation

You can easily make the Voltage (V) calculation with the help of the values of current (I) and resistance (R).

**V _{(V)} = I_{(A)} × R_{(Ω)}**

The value of Complex power (S) calculation can be obtained from the value of voltage (V) and current (I).

**P _{(W)} = V_{(V)} × I_{(A)} = V^{ 2}_{(V)} / R_{(Ω)} = I ^{2}_{(A)} × R_{(Ω)}**

## Energy & power calculator

All you need is to enter the 2 values to find the other values and finally hit the = button.

tOOL

## Energy & power calculation

The value of average power *P* measured in watts (W) is apparently equal to the value of energy consumed *E* measured in joules (J) is divided by time period Δ*t *measured* *in seconds (s).

**P _{(W)} = E_{(J)} / Δt_{(s)}**