Royal Holloway, University of London (RHUL) is a constituent college of the University of London. The college has three faculties, 18 academic departments, and about 8,000 undergraduate and postgraduate students from over 130 different countries. The campus is located in Egham, Surrey, within the boundary of the Greater London Urban Area, although outside of the M25 motorway and some 20 miles (32 km) from the geographic centre of London.