Ohms Law Calculator

The three calculators below calculate voltage, current or resistance using ohms law. Fill in the two boxes on the left and press 'Calculate' to find the unknown value.

Voltage Calculator (V = I * R):

Enter Current:        Amps Milliamps Microamps				Voltage = Volts
Enter Resistance:        Ohms Kilohms Megohms

Current Calculator (I = V / R):

Enter Voltage:        Volts Millivolts Microvolts				Current = Amps
Enter Resistance:        Ohms Kilohms Megohms

Resistance Calculator (R = V / I):

Enter Voltage:        Volts Millivolts Microvolts				Resistance = Ohms
Enter Current:        Amps Milliamps Microamps

Page last modified: 02 June 2008
Copyright © Simon Carter 1999-2008
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