- This article is about physical object; for meaning from audio field, see loudness.
The volume of an object is a measure of the amount of space occupied by that object, and is not to be confused with mass. The volume of a mountain is much larger than the volume of a rock, for instance.
By convention, the word volume implies a three-dimensional context where:
- The length is the longest distance between the object's extremities.
- The width (or breadth) refers to the size of the object in a direction perpendicular to its length.
- The height (or depth) stands for the size of that object in the direction perpendicular to both the length and the width.