Convert volts to watts by entering the voltage and current in amps, or the resistance of the circuit in the form below.
Converting voltage to power measured in watts is easy using a simple Watt’s Law formula. Watt’s Law states that current is equal to power divided by voltage. Using a little algebra we can change this formula a bit to also state that power is equal to voltage times current.
This is the formula to convert voltage to wattage:. Power(W) = Voltage(V) × Current(A). Thus, to solve for wattage, simply multiply the voltage by the current in amps.
For example, let’s convert 12 volts to watts, for a DC circuit with 2 amps of current.
Power(W) = 12 V × 2 APower(W) = 24 watts.