Singaporean units of measurement
Several units of measurement were used in Singapore to measure length, mass, etc. During 1968-70, the metric system was adopted in Singapore. Apartment or office size is generally still given in square feet.
System during the later half of the 19th century
Several units were used in Singapore under Straits Settlements.
1 covid (aka. hasta) = 18 inches which is equal to 45.72 cm.