Interactive Voltage Divider Calculator

A voltage divider circuit takes a higher voltage and converts it to a lower one using a pair of resistors. The formula is:

Vout = Vs * R2 / (R1 + R2)

Output Voltage (Vout):

2.500 V

VS = 5V R1 = 10kΩ R2 = 10kΩ Vout = 2.500V

How to Use This Voltage Divider Calculator

  1. Adjust Input Values: Enter your desired values for the voltage source (VS) and the two resistors (R1 and R2) using the input fields on the left.
  2. Instant Results: The calculator will automatically update the output voltage (Vout) and the circuit diagram whenever you change any value.
  3. Read the Result: The output voltage is displayed in blue both on the diagram and in the output box.

Applications

  • Level shifting for microcontroller inputs
  • Creating reference voltages
  • Battery level monitoring
  • Sensor calibration