The theory of elasticity for solvent swollen rubbers was used to calculate the average molecular weight of chain between crosslinks, M(c), of five waxy maize starches with different degrees of crosslinking. Above a critical starch concentration (%w/w), maximum packing of granules occurs, and the interior of the granules controls the rheological behavior of the starch suspensions. A rubbery plateau, characterized by a storage modulus, G’, independent of frequency, is related to the average M(c) by the equation : M(c) = c(1/3)p(2/3)RT/G’. M(c) values determined (g/mol) for lightly crosslinked starch were 2.7x10(6) and 2.6x10(6); for moderately crosslinked, 2.5x10(6); and, 1.2x10(6) and 1.2x10(6) for highly crosslinked starches. As expected, a lower degree of crosslinking results in a higher molecular weight between the covalent bonds.