👉 The decimal fluid, also known as the metric fluid or simply fluid, is a unit of volume in the International System of Units (SI) that measures capacity or amount of liquid. It is defined as the volume of a cube with sides of one decimeter (10 cm) each, which precisely equals 1000 cubic centimeters (cm³). This unit is part of the metric system, designed to provide a consistent and universally applicable way to measure liquids. Unlike other volume units that can vary by region, the decimal fluid ensures uniformity in scientific and everyday measurements across different countries.