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The cubic meter (m³) is the SI base unit of volume, representing the space occupied by a cube one meter on each side, used in construction, shipping, and industrial processes. Water supply bills, concrete orders, and freight calculations all rely on cubic meters as their standard measurement. One cubic meter equals exactly 1,000 liters or about 264.2 US gallons.

The milliliter (mL) is a metric unit of volume equal to one-thousandth of a liter, widely used in medicine, cooking, and chemistry for measuring small liquid quantities. Cough syrup dosages, perfume bottles, and laboratory reagents are all commonly labeled in milliliters. One milliliter equals exactly one cubic centimeter, making it interchangeable with cm³ in scientific contexts.