Resistance of vias

The electrical resistance of (parallel) interlayer connections (vias) is calculated in the following application. Vias are also useful to transfer heat from one PCB side to the other. Therefore, the following tool calculated the electrical as well as the thermal resistance of vias.


Resistance Electrical resistance
Thermal resistance
Temperature of copper [°C]
Specific resistance [Ωmm²/m]
Thermal Conductivity Copper [W/mK]
Circuit board thickness [mm]
Drilling diameter [mm]
Copper layer [m]
Number of vias
Current [A]
Heat capacity [W]


Cross section
Voltage drop
Power loss
Thermal resistance
Temperature difference