What is one Cubic inch?

Answer 1

A cubic inch is an imperial measure of volume which can take any shape.

The easiest shape to consider is a cube with side length of 1 inch.

This cube has a volume of 1 in × 1 in × 1 in = 1 cu in.

A cuboid with side lengths 0.5 in, 1 in and 2 in has a volume of 0.5 in × 1 in × 2 in = 1 cu in; the same volume, 1 cubic inch, but a difference shape.

When converting to other units, eg cubic centimetres, you can use the conversion of 1 in to the unit, (eg 1 in = 2.54 cm) and substitute it for the side lengths of the cube:

1 cu in = 1 in × 1 in × 1 in = 2.54 cm × 2.54 cm × 2.54 cm = 16.387064 cu cm ≈ 16.39 cu cm

As 1 cu cm = 1 ml, 16.39 cu cm = 16.39 ml.

Answer 2

A cubic inch is a cube that measures length x width x depth: 1 x 1 x 1 = 1 cubic inch.

Answer 3

It is approx 16.39 cubic centimetres (or millilitres).