Ohm's Law Calculator

Determine Power & Fusing Requirements


VOLTS=Voltage, AMPS=Current, OHMS=Resistance, WATTS=Power

Enter any two items and you'll be given all four. Example: Your electrical system is 12 volts and you are installing 70 watts of driving lights. Enter those two figures and you will be provided with Amps and Ohms to determine fusing and wire size needs. (note, wire size chart is elsewhere in Gadget's Toolbox)


Press the Ohm's Law button after you have made your entries:



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