Convert from ping to caballeria [Central America]

Unit Definition (ping)
The ping is a traditional unit of area in Taiwan, equal to about 3.305 square meters (3.953 square yards). This is the same unit known in Korea as the pyong.

Unit Definition (caballeria [Central America])
The caballeria [Central America] is a traditional unit of land area. In Central America it equals 60 manzanas, which is roughly 45 hectares (110 acres).