Convert from dhur to cuerda

Unit Definition (dhur)
The Dhur is a traditional unit of land area in South Asia, equal to 1/20 kattha or 1/400 bigha. Like the bigha, the dhur varied in size from region to another. In Nepal, where the unit is still in use, the dhur equals about 16.9 square meters or 20.2 square yards.

Unit Definition (cuerda)
The Cuerda is a traditional unit of land area in Puerto Rico. The cuerda is equal to about 3930 square meters, 4700 square yards, 0.393 hectare, or 0.971 acre. Because the cuerda and the acre are so close to being equal, they are often treated informally as being equal. Mainlanders sometimes call the unit the "Spanish acre."