Kapljuv is located in the municipality Cetingrad, in Karlovac County at an elevation of 220 meters above sea level and it covers the area of 2.78 km² (1.07 sq. miles). According to the 2011 census report, there were 31 inhabitants. It is entirely populated by Croats. Nearby places: Bilo, Sadikovac, Cetinski Varoš, Kestenje, Luke, Dubrave, Donje Gnojnice, Salopek Luke, Gornje Gnojnice and Gnojnice.