Free state-wise land area converter for India. Bigha is not a fixed size — it is 27,225 sq ft in Uttar Pradesh and Bihar, 14,400 in West Bengal and Assam, 12,000 in Madhya Pradesh, 8,712 in Himachal Pradesh and about 6,806 in the Uttarakhand hills. Pick your state and convert between bigha, katha, biswa, dhur, lecha, guntha, cent, kanal, marla, gaj, acre, hectare, square feet and square metre using that state's own revenue value. Includes a 1-bigha-by-state reference table.