Angelo's comments inspired me to determine some actual volumes, since I've been wondering about this for literally years. My preliminary results are at: http://www.shieldsgardens.com/FlowerPots.html I simply took some average-looking standard clay flower pots and measured the inside diameters and height, then calculated the volumes. As I recall, for a truncated cone the formula is: V = pi X (r1 + r2) X (r1 + r2) X ht / 4 A 6-inch pot holds a little under 1/2 gallon (US), a 7 inch pot holds a little over that. Regards, Jim Shields ************************************************* Jim Shields USDA Zone 5 Shields Gardens, Ltd. P.O. Box 92 WWW: http://www.shieldsgardens.com/ Westfield, Indiana 46074, USA Tel. ++1-317-867-3344 or toll-free 1-866-449-3344 in USA