The ab initio potentials of kinetic theory are used to calculate viscosity and thermal conductivity of pure helium-4, neon, argon, krypton, and xenon over the temperature range from 100 K to 5000 K at zero-density. The viscosity and thermal conductivity of binary mixtures of noble gases like helium-neon, helium-argon, neon-argon, argon-krypton, and argon-xenon are also obtained by ab initio calculations for temperature between 100K and 5000K at zero-density. The results of viscosity and thermal conductivity, both for pure noble gases and their binary mixtures are in good agreement with that of the literature. It is concluded that the ab initio, calculations lead to a quantitative prediction of viscosity and thermal conductivity of pure noble gases and their binary mixtures. (C) 2009 Elsevier B.V. All rights reserved.