The excess volume of mixing (V(E)) for the binary mixtures of the nitroalkanes nitromethane, nitroethane, and 2-nitropropane with symmetrical aromatic hydrocarbons benzene, p-xylene, and mesitylene has been determined by density measurements at 293.15 K. The V(E) values are positive over the whole mole fraction range except those for the mixtures of nitroethane and 2-nitropropane with benzene and p-xylene where they are negative at lower and positive at higher mole fractions of nitroalkanes. The results have been discussed in terms of dipole-induced dipole electrostatic molecular interactions significantly affected by steric factors.