Densities and viscosities have been measured at 308.15 K over the entire range of composition for N-methylacetamide with ethylene glycol, diethylene glycol, triethylene glycol, poly(ethylene glycol)-200, and poly(ethylene glycol)-300. From the experimental data, excess molar volumes (V-E) and deviations in viscosity (Deltaeta) have been calculated, and the deviations are fitted to a Redlich-Kister equation to obtain the binary coefficients and estimate the standard deviations between the experimental and calculated quantities. The values of V-E are negative whereas the values of Deltaeta are positive over the entire composition range.