Ohm Law Calculator
Ohm's Law calculators for current, voltage, resistance, and power. You may key in two of the four factors in Ohm's Law. They are Power (P) or (W), measured in Watts, Voltage (V) or (E), measured in Volts, Current or Amperage (I), measured in Amps (Amperes), and Resistance (R) measured in Ohms. The