Area measurement system used for land in Terai regions is completely different from hilly regions. Katha, Bigha and dhur systems are mainly used in Terai region. In other hand, Ropani, aana, daam and paisa systems are used in mountainous regions. Unit supported are Bigha, Kathha, Dhur, Ropani, Aana, Paisa, Daam, Square Foot, Metre Square. This is ads free utility, try it and share.