# DC power

The power is a direct current (DC) circuit is equal to the voltage multiplied by the current. The power can also be calculated with the resistance using Ohm's law.

### Formulas

P is the symbol for power and is measured in watt (W).

V is the symbol for voltage and is measured in volt (V).

I is the symbol for current and is measured in ampere (A).

R is the symbol for resistance and is measured in ohm (Ω).

### Calculator

Enter two values to calculate the remaining two.