A dl measurement is a unit of volume in the metric system, where "dl" stands for deciliter. It is equal to one-tenth of a liter, or about 3.3 fluid ounces. While not officially part of the International System of Units (SI), the liter, deciliter, and related measurements are often used in countries that use this system. Other units of volume measurement using the liter as a base include the centiliter, milliliter, hectoliter, kiloliter, and beyond. The abbreviation "dl" is used to represent deciliter, in contrast with the decaliter, which is written as "dal" to avoid confusion.