# Calculate copper plate resistance

1. May 6, 2007

### robhlee

If I have a sheet of copper, how can i calculate its resistance? do i just take the surface area of the thin side and compare it on an AWG chart?

2. May 7, 2007

### Staff: Mentor

It depends in which axis you want to do the calculation, but in all cases you would just use the resistivity formula:

$$R = \frac{\rho L}{A}$$

Where $$\rho$$ is the resistivity in Ohm*meters

http://en.wikipedia.org/wiki/Electrical_resistance