A millilitre (mL) is a unit of volume in the metric system, commonly used to measure liquids. One millilitre is equal to one-thousandth of a litre, which means that 1,000 millilitres make up one litre. This measurement is often used in cooking, medicine, and scientific experiments to ensure precise quantities. Millilitres are typically used in everyday situations, such as measuring ingredients for recipes or dosing medications. For example, a standard teaspoon holds about 5 millilitres, making it easy to convert between these two measurements. Understanding millilitres helps in accurately measuring and mixing liquids in various contexts.