US Postal Rates

[umswim]

Does anyone know of a calculation to determine US Postal Rates (Priority Mail) based on zip codes and weights?

[geod]

You can download the PDF charts from http://www.usps.com

From the charts you can create your own computation table or

if you have the bucks you can pay for the files themselves

in various formats.

[umswim]

Thanks geod. I'll try to play with it...a good learning exercise for me.