PCB Trace Width Calculator

Calculate PCB trace width for given current, copper weight, temperature rise using IPC-2221 formulas.

IPC-2221 standard for PCB trace width calculation based on current carrying capacity.

Current (Amps)

Copper Weight (oz/ft\u00B2)

Temperature Rise (\u00B0C above ambient)

Trace Length (mm)

Ambient Temperature (\u00B0C)

Layer

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