Molecular dynamics simulations were performed for a sodium dodecyl Sulfate micelle in water using a coarse-grained model. Each dodecyl sulfate molecule was represented using four interaction beads, one for hydrophilic head group and three for the dodecyl chain. A number of properties such as the micelle size and shape, and the water penetration in the hydrocarbon core were examined. The coarse-grained model was shown to closely reproduce the results of atomistic simulations for sodium dodecyl sulfate micelle. (C) 2009 Elsevier B.V. All rights reserved.