A voltage divider circuit is a very common circuit that takes a higher voltage and converts it to a lower one by using a pair of resistors. The formula for calculating the output voltage is based on Ohms Law and is shown below.
![Votage Divider Formula: Vout = Vs*R2/(R1+R2)](/static/img/voltage-divider-calculator-1.png)
where:
- VS is the source voltage, measured in volts (V),
- R1 is the resistance of the 1st resistor, measured in Ohms (Ω).
- R2 is the resistance of the 2nd resistor, measured in Ohms (Ω).
- Vout is the output voltage, measured in volts (V),
![](/static/img/voltage-divider-calculator-2.png)
Enter any three known values and press "Calculate" to solve for the other.