Voltage Divider Calculator

How to Use the Voltage Divider Calculator

This Voltage Divider Calculator allows you to calculate the output voltage (Vout) in a voltage divider circuit based on the input voltage (Vin) and two resistors (R1 and R2). Follow these simple steps:

1. Input Voltage (Vin):
   Enter the input voltage of the circuit in volts (V). This is the voltage applied to the two resistors.
2. Resistor R1:
   Enter the value of the first resistor (R1) in ohms (Ω), kilo-ohms (kΩ), or mega-ohms (MΩ). You can select the appropriate unit from the dropdown menu.
3. Resistor R2:
   Enter the value of the second resistor (R2) in ohms (Ω), kilo-ohms (kΩ), or mega-ohms (MΩ), and select the unit as well.
4. Click "Calculate":
   After entering the values, simply click the Calculate Output Voltage (Vout) button to see the result.

Formula Used:

The voltage divider formula used for calculation is: Vout=Vin×{R2/(R1 + R2)​}

Where:

• 'Vout'​ is the output voltage across resistor R2.
• 'Vin​' is the input voltage.
• 'R1' and 'R2' are the resistances of the two resistors.

Example:

• If you have an input voltage of 12V, with R1=10kΩ and R2=10kΩ, the output voltage will be 6V.

Why Use a Voltage Divider?

Voltage dividers are commonly used in electronics to reduce a voltage to a specific level required by components like sensors, microcontrollers, or operational amplifiers. This calculator simplifies the process, providing quick results for accurate design and testing of circuits.