Liquid densities of the binary glycerol + 1-propanol, + 2-propanol, + 1,2-propanediol, and + 1,3-propanediol mixtures were measured at the temperatures in the range from (298.15 to 333.15) K in 5 K intervals. From these data, the excess molar volumes (V (E)) and its standard deviations (sigma(V (E))) were calculated. The experimental results have been correlated using the three parameters of the Redlich-Kister equation.