What do liters measure?

Liters measure volume, which is the amount of space that a substance (solid, liquid, or gas) occupies. This unit is commonly used in various contexts, such as measuring liquids in cooking, beverages, and scientific experiments. Understanding volume is critical in fields such as chemistry, where precise measurements can affect reactions and outcomes, and in daily life, where one might need to know how much liquid a container can hold.

In contrast, weight is a measure of how heavy something is, time refers to the duration of events, and distance quantifies the space between two points. These concepts, while important in their own rights, do not relate to the measurement of volume, which is why they are not suitable answers in this context.