One of the most basic and common circuits is the two resistor voltage divider. The ratio of the resistors divides an input voltage down to a lower voltage. This calculator simplifies the task.
The equations used are:
\[ V_o = V_{in} \cdot \frac{R_2}{R_1 + R_2} \]
\[ \frac{R_2}{R_1} = \frac{V_o}{V_{in} - V_o} \]
