Convert from tatami to carucate

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 (carucate)
The Carucate is an another name for the hide, an old English unit of land area. The name comes from a Latin word meaning "plowland".