Hi there, you should assign your first list to be your X values and second to be your Y values, now check out this link.

Pearson product-moment correlation coefficient - Wikipedia, the free encyclopedia

That gives you the formula for 'r' the correlation coefficient you are after.

first find mean of X and Y then the standard deviation of X and Y.

To do the calcs I suggest you make a table with the following field headings.

X, X-meanX, Y, Y-meanY