Convert from cawney to square chain [Gunter, survey]

Unit Definition (cawney)
The Cawney is a traditional unit of land area in southern India, equal to about 4/3 acre (0.54 hectare). The name is an English tranliteration of a Tamil word for the unit.

Unit Definition (square chain [Gunter, survey])
The square chain [Gunter, survey] is a traditional unit of area in English surveying, defined to be the area of a square whose side equals Gunter's chain (4 rods or 22 yards). Thus the square chain equals 16 square rods, 484 square yards, 4356 square feet, or exactly 0.1 acre.