FREE TOOLS // CALCULATORS

RESOURCES

Free interactive engineering tools, calculators, and compliance references for electronics professionals.

PCB Design Tools

Interactive calculators for PCB trace sizing, impedance, via capacity, and board layout.

Calculate minimum PCB trace width using IPC-2221 standards. Input current, copper weight, and temperature rise.

Determine maximum current capacity for PCB vias based on diameter, plating thickness, and temperature rise.

Calculate characteristic impedance for microstrip, stripline, CPWG, and differential pair transmission lines.

Calculate optimal PCB panel layout for manufacturing. Maximize board count and material utilization with V-score or tab routing options.

General EE Utilities

Everyday engineering calculators — Ohm's law, unit conversion, resistor color codes, and more.

Calculate output voltage for resistive voltage dividers with standard resistor value suggestions.

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