Potential Divider Calculator

These calculators perform calculations for potential divider circuits. The first one calculates the voltage from known resistor values, the second finds suitable resistor values if the desired output voltage is known. The third calculates R2 given V1, V2 and R1.

Calculate Voltage Out (V2) from Resistors (R1 & R2):

Enter R1: Ohms Kilohms Megohms				V2 = Volts
Enter R2: Ohms Kilohms Megohms
Enter V1: Volts Millivolts Microvolts

Calculate Resistors (R1 & R2) from Voltage Out (V2):

Enter V1: Volts Millivolts Microvolts				R1 = R2 = Ohms
Enter V2: Volts Millivolts Microvolts
Enter Total Resistance (R1 + R2):                  Ohms Kilohms Megohms

Calculate Resistor  R1  from Voltage Out (V2) and R2:

Enter V1: Volts Millivolts Microvolts				R1 = Ohms
Enter V2: Volts Millivolts Microvolts
Enter R2: Ohms Kilohms Megohms

Page last modified: 02 June 2008
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