Excess volumes V-E measured at the temperature 313.15 K in a dilution dilatometer are reported for (N,N-dimethylformamide + water), (N,N-dimethylformamide + ethanol), (ethanol + water), and (N,N-dimethylformamide + ethanol + water). The results have been analysed using various correlation equations. The possibility of predicting the ternary V-E values from the binary ones is examined.