The curvature in general is measured as 1/r, where r is the radius of an inscribed circle. Since mean curvature is the average of the two principal curvatures it has the units of 1/mm. The Gaussian curvature is the product of them, so it is 1/mm^2.

see Mean Curvature

also Van Essen Lab Folding/Measurements

MeanCurvature (last edited 2011-07-06 13:56:37 by NickSchmansky)