Excess volumes, V-E, of the binary liquid systems of methyl formate, ethyl formate, propyl formate, and benzyl acetate each with bromo-, chloro-, and nitrobenzenes have been derived from experimental density measurements at (303.15, 308.15, and 313.15) K and atmospheric pressure over the entire composition range. These excess volumes were fitted to the Redlich-Kister polynomial equation to derive the coefficients and standard errors. The excess volumes for all of the systems were found to be negative across the mole compositions.