This is what I was trying to post above.... Hopefully it will come through here ok.
Table of Relative Hosta Size
Hosta Size Leaves Mature Plant
Dwarf <2.0 sq. in. <4" tall
Miniature 2.0 to 6.0 sq. in. 4" to 6" tall
Small 6.0 to 25 sq. in. 6" to 10" tall
Medium 25 to 81 sq. in. 10" to 18" tall
Large 81 to 144 sq. in. 18" to 28" tall
Giant >144 sq. in. >28" tall