Unit Calculator Calculators and area converter for Real Estate in Orissa Area Conversion Calculator Enter any one value and click on the Calculate button to get the equivalent measurements. Click on the Clear button before entering a new unit value. Square Feet Square Metres Square Yards Acres *Biswa I *Bigha I *Biswa II *Bigha II Hectares Kottah (B) Kanal Marla Grounds Decimal/Cents Aankadam Perch Rood Guntha Chataks Ares NOTE: If the result is greater than 9999999999 then "-" is displayed. Also when the result is less than 0.00000001 then "0" is displayed. Author:- Er.D.P.Panda