Patra Kalan is a village in Keredari tehsil in district of Hazaribagh, Jharkhand, India. As per the data provided by Census of India in 2011, total population of Patra Kalan was 786 which includes 376 males and 410 females. Patra Kalan covers 1003.24 ha area. Pincode of Patra Kalan is 825611.