A floor panel for forming a floor covering comprises a pair of edges provided with coupling parts allowing to couple two of such floor panels to each other by means of a rotation movement. The coupling parts are realized in the form of a tongue and a groove with locking parts. The groove is bordered by an upper lip and a lower lip which comprises a locking part in the form of an upward-directed locking part. The upward-directed part extends over a height which is more than 0.1 times the thickness of the floor panel.