Voltage Divider Calculator

What is a Voltage Divider Calculator?

A Voltage Divider Calculator is a tool that helps determine the output voltage in a voltage divider circuit based on the input voltage and resistor values. It's useful for designing and analyzing circuits where a specific fraction of the input voltage is needed.

The Formula

The formula for calculating the output voltage in a voltage divider is:

$$V_{out}=V_{in}\times \frac{R_2}{R_1+R_2}$$

Where:

• V_out is the output voltage
• V_in is the input voltage
• R₁ is the resistance of the first resistor
• R₂ is the resistance of the second resistor

Voltage Divider Circuit

A basic voltage divider circuit consists of two resistors in series with the input voltage applied across both, and the output voltage taken from the middle point:

This circuit is widely used in various electronic applications to reduce a voltage by a specific ratio. It's important to note that the current drawn from the output can affect the voltage division, so this simple model assumes a high-impedance load.