Voltage Divider Calculator

A Voltage Divider is a linear circuit that is utilized to divide a given supply voltage across multiple component paths in series. This calculator is made to calculate the Output Voltage across two given Resistors.

Voltage Divider Diagram:

voltage divider diagram

Calculation Parameters:

  • Source Voltage [\(V_s\)]: The input voltage to the voltage divider circuit.
  • Resistor 1 [\(R_1\)]: The resistance of the 1st resistor in ohm.
  • Resistor 2 [\(R_2\)]: The resistance of the 2nd resistor in ohm.

How do you calculate the output voltage?

The output voltage can be calculated using the following formula:

\[V_{out} = V_{in} \cdot \frac{R_2}{R_1 + R_2}\]

Example Calculation:

Let's assume we have a voltage divider circuit with a source voltage (\(V_s\)) of 12V, resistor \(R_1\) of 10kΩ, and resistor \(R_2\) of 5kΩ. Using the voltage divider formula, we can calculate the output voltage (\(V_{out}\)) as follows:

\[V_{out} = V_{s} \times \frac{R_{2}}{R_{1} + R_{2}}\]

Substituting the values, we get:

\[V_{out} = 12V \times \frac{5000\Omega}{10000\Omega + 5000\Omega} = 4V\]

Therefore, the output voltage (\(V_{out}\)) is 4V.