What is CircuitMix Tools?
CircuitMix Tools is a free online toolbox for electrical, electronics, solar PV, wind energy, digital logic and quick reference work. The goal is to make common calculations faster, cleaner and easier to understand on mobile and desktop.
These tools are designed for students, electronics makers, electricians, technicians, engineers and CircuitMix followers who need practical calculators without sign-up or complicated software.
Voltage drop, wire size, motor current, breaker size, kVA to amps, conduit fill and other field checks.
Ohm’s law, LED resistor, resistor codes, 555 timer, MOSFET, PCB and component tools.
Solar panel output, batteries, MPPT, strings, ROI, wind turbine power, RPM and energy estimations.
Digital logic, binary conversion, Boolean algebra, K-map, pinouts and quick reference charts.
Our approach
Every tool is built to be simple enough for quick use, but useful enough for real-world learning and estimation. We focus on clear input fields, practical formulas, mobile-friendly layouts, examples and safety notes wherever needed.