Voltage Divider Calculator

This calculator allows you to quickly determine the output voltage of a two-resistor divider network, providing essential data for signal conditioning and sensor interfacing.

Use this tool to:

  1. Calculate the precise output voltage V(out) when stepping down higher voltages for sensitive microcontroller inputs or analog-to-digital converters (ADCs).
  2. Evaluate total current draw and power consumption of the divider to ensure your circuit remains efficient and battery-friendly.
  3. Determine resistor power dissipation to verify that your selected components (e.g., 1/4W or 1/8W resistors) can safely handle the thermal load without failing.
Circuit Parameters
Results

*Calculation: Vout = Vin * (R2 / (R1 + R2)). Assumes no load is connected to Vout.

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