The measured magnetization losses of several kinds of multifilamentary YBCO coated conductors were compared with the theoretical values which were calculated using a two-dimensional FEM model for electromagnetic field analysis of coated conductors. Through the comparison between measured and numerically calculated coupling loss components, the transverse resistances between filaments were determined. The magnetization losses measured at various frequencies were discussed on, using these determined transverse resistances. The overall magnetization losses were calculated based on the determined transverse resistances and compared with the measured values to assess the validity of the numerical model. (c) 2006 Published by Elsevier B.V.