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:
- Input Voltage (Vin):
Enter the input voltage of the circuit in volts (V). This is the voltage applied to the two resistors. - 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. - 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. - 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.