The town is located about 30 kilometres (19 mi) southwest of Prague at the confluence of Berounka and Litavka rivers. The town is a part of the Prague metropolitan area.

The surrounding landscape is hilly. Beroun itself is situated in a deep valley, which has been a limitation on building development. The highest point is the Ded peak, 493 meters above sea level. The lowest point is the Berounka river, 212 meters above sea level. Neighboring hills of Brdy and Krivoklátská vrchovina are protected landscape areas, popular for tourist.