In 1947 Michałowski was awarded the Commander’s Cross and the Order of Polonia Restituta for his "merits and contribution into the protection of the Polish cultural masterpieces". On 21 July 1977 he received the 1st Class Order of the Builders of People's Poland. He was also a winner of the 1st and 2nd Degree State Award. In addition he also received the following distinctions: 1st Class Order of the Banner of Work, 5th Class Virtuti Military Cross (for the 1939 campaign), Gold Cross of Merit. He was also awarded in Egypt and Syria as well as in France (Officer’s Cross and Commander’s Cross of the National Order of the Legion of Honour), Italy (Commander’s Cross of the Order of the Crown of Italy), Greece (Commander’s Cross of the Order of the Phoenix), Belgium (Grand Officer’s Cross of the Order of Leopold).