Excess molar volumes V-m(E) at 298.15 K and atmospheric pressure for 1-propanol + 2,5-dioxahexane, 3,6-dioxaoctane, 2,5,8-trioxanonane, 3,6,9-trioxaundecane or 5,8,11-trioxapentadecane have been calculated from densities measured with an Anton-Paar DMA 602 vibrating-tube densimeter. All the excess molar volumes are negative over the whole mole-fraction range, nearly symmetrical for mixtures with diethers and slightly skewed towards the region of high mole fraction of 1-propanol for mixtures with triethers. The value of V-m(E) decreases as the n-alkyl chain end length of the diethers or the triethers increases. When the n-alkyl chain end of the polyethers is the methyl group (-CH3), V-m(E) is very small in absolute value and similar for the diethers and triethers, whereas when the end group is larger than the methyl group, the value of V-m(E) is more negative for the diethers than for the triethers. These results, together with previously published excess molar enthalpies, suggest the formation of hydrogen bonds between the functional group -OH of the 1-alkanol and the -O-atoms of the polyethers.