Electronics Tools

Easily determine the perfect resistor value for your LED circuit with just a few clicks. Input your desired current and voltage, and let our tool suggest matching E series resistors to ensure optimal performance and longevity for your light-emitting diodes.

Quickly locate the nearest standard resistor values to your desired resistance. Additionally, this tool offers suggestions for combining standard series resistors to achieve precise resistance targets.

Calculate the total resistance of two or more resistors connected in parallel.

Find standard E series resistors for your desired voltage divider input and output voltages.