Engineering Tools
Free PCB Calculators & Engineering Tools
Practical calculators for controlled impedance, trace ampacity, and stackup design — the numbers we use on the factory floor, free for every hardware engineer.
PCB Impedance Calculator
Microstrip, stripline, and coplanar-waveguide impedance from geometry and dielectric constant.
PCB Trace Width Calculator
IPC-2221 ampacity: minimum trace width for a target current and temperature rise.
PCB Stackup Calculator
Build a layer stackup and estimate thickness, impedance, and copper distribution.
Rogers RT/duroid 5880 Calculator
Microstrip, stripline, and CPW impedance for Rogers RT/duroid 5880 (Dk 2.20) RF boards.
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