What is difference between capacity and volume?

Volume can be defined as a measure of the amount of 3D space which is occupied by an object. Capacity can be defined as a measure of the amount of 3D space within a container which can be filled (usually by a liquid or a gas but often free-flowing solids such as sand or rice are used). read more

Capacity refers to the amount of space inside a container that can be filled, whereas volume is the amount of space that an object occupies. A hollow object can have both capacity and volume, whereas a solid object has volume only. read more

The main difference between capacity and volume is that volume is a mathematical quantity (cubic length), while capacity is not. The capacity can change for a given volume, e.g. if you double the number of seats in an airplane, its capacity doubles, whereas the volume remains constant. read more

Volume vs Capacity Vol ume and capacity are commonly interchanged in both meaning and use because of the correlation that exists between them, but there is a definite difference between volume and capacity. Whenever volume or capacity comes to mind, it is accepted that it involves an object and the substance that it contains. read more