Dynamic viscosities, densities, and speeds of sound have been determined over the whole composition range for the binary systems cyclohexane (1) and cyclopentane (1) with acetone (2), butanone (2), or 2-pentanone (2) at T = (293.15, 298.15, and 303.15) K and atmospheric pressure along with the properties of the pure components. Excess molar volumes, isentropic compressibilities, deviations in isentropic compressibility, and viscosity deviations for the binary systems at the above-mentioned temperatures were calculated and fitted to the Redlich-Mster equation to determine the fitting parameters and the root-mean-square deviations. The UNIQUAC equation was used to correlate the experimental viscosity data. Predictions of the dynamic viscosities of this binary mixture from the UNIFAC-VISCO and ASOG-VISCO methods have been determined.