Convert from tatami to caballeria [Central America]

Unit Definition (tatami)
The tatami is a Japanese unit of area equal to the area of a traditional tatami mat, 0.5 ken by 1 ken or about 90 centimeters by 180 centimeters (roughly 1.62 square meters or 17.5 square feet). This unit, used especially for measuring the area of rooms in houses and apartments, is also called the jo.

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).