Excess molar volumes of the ternary mixtures {x(1) cyclohexane + x(2) n-hexane + (1 - x(1) - x(2)) 1-chlorohexane) and {x(1) cyclohexane + x(2) n-hexane + (1 - x(1) - x(2)) 1-hexanol} were measured at the temperature 298.15 K. Excess molar volumes were determined using an Anton-Paar densimeter. All the experimental values were compared with the results obtained by empirical expressions for estimating ternary properties.