Definitions used: 1 ropani = 16 aana = 64 paisa = 256 daam = 5,476 square feet, and 1 bigha = 20 kattha = 400 dhur = 72,900 square feet, with 1 square foot = 0.09290304 m². Local practice can differ slightly, so for legal work use the area written on the land ownership certificate (lalpurja).