Across Kerala, Tamil Nadu, and coastal Karnataka, small residential land is bought and sold in cents. The unit is refreshingly simple: one cent is defined as one hundredth of an acre, so converting acres to cents is just moving the decimal point — 0.25 acre is 25 cents, 1.5 acres is 150 cents.
One cent works out to 435.6 sq ft (about 40.47 m²), which is why typical urban house plots in Kochi or Coimbatore are quoted as 3, 5, or 10 cents. The same 1/100th-of-an-acre unit appears under other names elsewhere: the decimal (or satak) of West Bengal and Bangladesh is the identical area. Enter any figure into the converter to see cents alongside square feet, square meters, guntha, and every other unit at once.