Chauhar Chak is a village in Karpi tehsil in district of Arwal, Bihar, India. As per the data provided by Census of India in 2011, total population of Chauhar Chak was 1,007 which includes 532 males and 475 females. Chauhar Chak covers 73 ha area. Pincode of Chauhar Chak is 804419.