how many cups of batter go into a 6" round? is there a site that has a list of batter and pan size?? thanks!

www.wilton.com

Here at CC there is an article that has all that information:
http://www.cakecentral.com/article14-Cake-Baking-Cutting--Serving-Guide---2-in-Deep-Pans.html

For a 6 in round - 2in deep I use 1/4 of a recipe (doctored cake).

Thank you nenufares! I needed that kind of info, too, and the Cake Central link you posted is perfect!