The H.C. Ørsted Institute is the building complex in which the University of Copenhagen has its science department. Subjects like chemistry, physics, and mathematics are taught here.

The complex is made up of 5 connected buildings: A, B, C, D and E.

Building A is a long connecting building, it's in ground, 1st floor and basement level and holds the cantine and auditories.

Building B is a 5 floor building, and holds facilities for inorganic (ground, 1st and 2nd level) and organic chemistry (3rd, 4th and 5th level). In the basement of the building is a mass spectrometry apparatus. Building C is a 5 floor building similar to building B and holds the sections for theoretical chemistry and spectroscopy. Building D is a 5 floor building similar to B and C. It holds the Ørsted Laboratory.

Building E is another type building, not as large as the other three. It holds the mathematical section. See: University of Copenhagen Institute for Mathematical Sciences