PCB Design Calculators

Trace Width

Calculate minimum PCB trace width for a given current, copper weight, and temperature rise per IPC-2221 and IPC-2152 standards. Includes resistance and voltage drop.

Trace Resistance

Calculate PCB copper trace DC resistance from width, length, thickness, and temperature. Includes sheet resistance and temperature coefficient.

Differential Pair

Calculate differential (Zdiff) and common-mode (Zcom) impedance for edge-coupled microstrip differential pairs used in USB, HDMI, Ethernet, and high-speed serial interfaces.

Via Calculator

Calculate PCB via impedance, capacitance, inductance, current capacity, aspect ratio, and DFM warnings. Covers through-hole and blind/buried vias.

Stackup Builder

Calculate characteristic impedance for common PCB stackup configurations. Select layer count, dielectric thickness, and copper weight to get target trace width for 50Ω or custom impedance.