Watts to volts formula
Voltage = watts ÷ amps: V = W ÷ A. If a load draws 1,800 W at 15 A, the system voltage is 120 V.
When this helps
Useful when you know appliance wattage and measured current but need nominal circuit voltage, or when verifying inverter output.
Frequently asked questions
Q: Can current be zero? A: No—division by zero is undefined. Enter a positive current value.