Several units of measurement were historically used in Singapore to measure length, mass, and volume. During 1968–1970, the metric system was adopted in Singapore. The metric system is used for most official purposes and only metric measures are permitted for trade. Despite these restrictions, fabric is still commonly sold by the square yard. Area is still expressed in square feet and less frequently acres, and bodily height is also commonly expressed in feet and inches.
Several units were used in Singapore under Straits Settlements.
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