Volume

Volume is the measure of the three-dimensional space occupied by an object or substance. It is expressed in cubic units or, for liquids, units such as liters.

Length: Length is a measure of distance along one dimension. Volume extends one-dimensional length into measurements of three-dimensional space.
Volume formula: A volume formula calculates three-dimensional space from dimensions or other measurable quantities. Shape-specific formulas turn an object's dimensions into its volume.
Density: Density is mass per unit volume. Knowing volume and mass determines a substance's density.
Mass: Mass is a measure of the amount of matter in an object. Objects can have equal volume but different mass because their densities differ.
Area: Area measures the size of a two-dimensional surface. Many volume formulas combine a base area with a perpendicular height.
Water displacement method: The water displacement method measures an object's volume from the rise in water level when it is submerged. It measures irregular solids whose volume is difficult to calculate from dimensions.
Capacity: Capacity is the amount a container can hold, usually measured as volume. Capacity concerns a container's interior, while volume can describe any region or object.
Weight: Weight is the gravitational force acting on an object. Weight is a force, whereas volume measures occupied space.
Cubic unit: A cubic unit is the volume of a cube whose edges each measure one unit. Volume is commonly expressed by counting cubic units.
Graduated cylinder: A graduated cylinder is laboratory glassware marked with a scale for measuring liquid volume. Its graduations provide direct readings of liquid volume.

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