Liter, << LEE tuhr, >> is a commonly used measure of capacity and volume in the metric system. It is also spelled litre. The official unit for volume in the metric system is the cubic meter, but most people use the liter instead. Since 1964, a liter has been defined as exactly one cubic decimeter, or 1,000 cubic centimeters. One liter contains 61.024 cubic inches and equals 1.057 liquid quarts. Its symbol is l. See also Weights and measures ; Metric system .
