Voltage Divider Calculator
Calculator Features:
- Calculate any parameter (R1, R2, Vin, or Vout) when you know the other three
- Automatic unit conversion (ohms, volts)
- Real-time calculation results
- Interactive circuit diagram
- Reference formulas for voltage divider circuits
Circuit Diagram
Voltage Divider Formulas
Output Voltage:
\( v_{out} = v_{in} \times \dfrac{R2}{R1 + R2} \)
Input Voltage:
\( V_{in} = V_{out} \times \dfrac{R1 + R2}{R2} \)
Resistor R1:
\( R_1 = \left( \frac{V_{in} \times R_2}{V_{out}} \right) - R_2 \)
Resistor R2:
\( R_2 = \frac{R_1 \times V_{out}}{V_{in} - V_{out}} \)