Kachamachanahalli is a village in Gauribidanur tehsil in district of Chikkaballapura, Karnataka, India. As per the data provided by Census of India in 2011, total population of Kachamachanahalli was 1,603 which includes 796 males and 807 females. Kachamachanahalli covers 563.36 ha area. Pincode of Kachamachanahalli is 561213.