Electronics Calculators

Electronics design often requires precise calculations to ensure circuits function correctly and efficiently. This page brings together practical electronics calculators that help you analyze common components and systems, from voltage divider circuits to antenna design. Whether you are building circuits, testing configurations, or working on RF and signal applications, these tools provide quick and reliable results to support both engineering projects and hobby electronics work.

Voltage Divider 3 Resistors calculator

Calculate the voltage drop (and the voltages of a voltage divider with 3 resistors connected in series.

Wire Yagi Calculator

Entering an operating frequency and the total number of elements generates measurements for the reflector, driven element, and director(s) to optimize directionality and gain of your Antenna.