Math & Stats
Voltage Divider Calculator
Calculate the output voltage of a two-resistor voltage divider circuit.
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FAQ
Frequently asked questions
What is a voltage divider?
A voltage divider is a simple linear circuit that produces an output voltage that is a fraction of its input voltage.
What is the formula for a voltage divider?
The output voltage is calculated as Vout = Vin × (R2 / (R1 + R2)), where R1 is the top resistor and R2 is the bottom resistor.
What are voltage dividers used for?
They are commonly used to create a reference voltage, or to reduce the magnitude of a voltage so it can be measured by a microprocessor's ADC.