Enter the trace length, width, thickness, and temperature rise to calculate the resistance of your PCB trace.

PCB Trace Resistance Calculation Formula

The following formula is used to calculate the resistance of a PCB trace:

Trace Resistance (Ω) = (Trace Length (mm) / (Trace Width (mm) * Trace Thickness (oz) * Material Resistivity)) * (1 + Temperature Coefficient * Temperature Rise (°C))

Variables:

  • Trace Resistance is the resistance of the PCB trace (Ω)
  • Trace Length is the length of the trace (mm)
  • Trace Width is the width of the trace (mm)
  • Trace Thickness is the thickness of the trace (oz)
  • Material Resistivity is