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.

Controlled Z

Calculate characteristic impedance for surface microstrip, embedded microstrip, and stripline PCB traces

PCB Crosstalk

Estimate PCB trace crosstalk coupling coefficient, NEXT, FEXT, and critical coupling length for signal integrity analysis on PCB layouts

Decoupling Capacitor

Calculate decoupling capacitor self-resonant frequency, impedance at target frequency, effective bypass range, and number of capacitors needed for power integrity

PCB Trace Inductance

Calculate PCB trace parasitic inductance using the Ruehli formula, including inductance per unit length and inductive impedance at key frequencies

Via Thermal Resistance

Calculate PCB via thermal resistance, array thermal resistance, thermal conductance, and current-carrying capacity for thermal via design