What is volume?

Volume is the amount of space that an object or liquid occupies. The unit of volume depends on the system of measurement being used, usually the metric system (SI) or the Imperial System.

Units of volume measurement

In the International System of Units (SI), common units of volume measurement include:

• Cubic meter (m³) – The basic unit of volume measurement.
• Liter (L) – The unit commonly used to measure liquids is 1 L = 0.001 m³.
• Milliliter (mL) – 1 mL = 0.001 L = 1 cm³.
• Cubic centimeter (cm³) – Commonly used in physics and chemistry.

In the English system of measurement, some common units of volume include:

• Gallon (gal) – 1 US gallon ≈ 3.785 L.
• Pint (pt) – 1 US pint ≈ 473 mL.
• Fluid Ounce (fl oz) – 1 fl oz (US) ≈ 29.573 mL.