About ECAD Workbench
ECAD Workbench is a free browser-based collection of practical electronics calculators for schematic and PCB design checks.
The site is built for electronics engineers, PCB designers, and hardware teams who need quick design checks without losing sight of assumptions and limitations.
A workbench, not a magic answer box.
Practical first-pass checks
The calculators are intended for everyday engineering decisions: sizing values, checking assumptions, and moving to the next design question quickly.
Transparent equations
Calculator pages show the model, equations, assumptions, examples, and limitations so the result is not a black box.
No fake certainty
ECAD Workbench does not claim to replace simulation, datasheet checks, lab measurement, certification, or engineering judgement.
Free calculators available now
The current launch focuses on common circuit, analogue, filter, stored-energy, and engineering-unit checks. Planned calculator areas include deeper PCB layout, power, signal-integrity, and thermal workflows as ECAD Workbench grows.
Browse the calculator directory ->