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Voltage Divider Calculator

See our other Electronics Calculators.

One of the most basic and common circuits is the two resistor voltage divider.  The ratio of the resistors divides and input voltage down to a lower voltage. This calculator simplifies the task. 

See our standard resistor calculator for a real world resistor value. 

Equations:

Vo= Vin*R1/(R1+R2)

R1/R2= Vo/(Vin-Vo)

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Disclaimer:  Daycounter, Inc. doesn't guarantee the result or accuracy of this free calculator. 

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