Voltage Divider Calculator
What is Voltage Divider?
Given voltage Vin as the input voltage; running Vin through resistors in series the output of the voltage between two resistor will drop by the radio of the resistors.
Let's see an example:
Vin = 9V
R1 = 1000 Ω
R2 = 1000 Ω
Rt= R1 + R2 => Rt = 2000 Ω
Using the formula for voltage divider:
Vout = (R / Rt) * Vin
We Get (lets take as example R1):
Vout = (1000Ω / 2000Ω) * 9V
This results in Vout = 4.5V
In case that you need to find the voltage divider, please use the tool below:
Enter Total Voltage and at least two resistor's value
Results
Enter a valid total voltage and at least two resistor values to see results.