In the title compound, C18H22O4, the cyclo-hexane and cyclo-hexa-none rings adopt normal chair and half-chair conformations, respectively. The dioxolane ring is almost planar, with an r.m.s. deviation of 0.094 (3) Å. In the crystal, mol-ecules are connected by O-H⋯O hydrogen bonds, forming 21 helical chains along the a-axis direction. The chains are further connected by C-H⋯O hydrogen bonds.