Voltage Divider Calculator

This calculator provides assistance for designing a voltage divider, either with a common E-series of preferred numbers or with the set of resistors you already have in your parts bin.

This calculator accepts arbitrary units and expressions. For example, 5e10 / (1 hour) will be interpreted as "27.77 MHz".

Allowed Resistors

E-series

Select parameters for the resistors that the calculator will be allowed to use. Modifying values here will replace the contents of the custom resistor entry field below.

Custom Entry

Divider Parameters

Select the parameters for your voltage divider. You may change any of the fields, and the rest of the fields will update with the correct values