How do you work out the capacity of something?

Method 3 Calculating the Capacity of a Rectangular TankFind the volume of your tank. To determine the volume of a rectangular tank, multiply the length (l) times the width (w) times the height (h). ... Calculate the filled volume. read more

For the numeracy curriculum, you may need to work out the volume of a cuboid or shoebox. You normally know the width, height and depth of the box. To work out the volume, you simply times the three numbers together. A classic problem in numeracy exams involves working out how many small boxes fit into a bigger box. read more

If you have access to the inside of the container, you can measure the inside dimensions and calculate capacity directly, using the formula for volume. If you can only measure the outside dimensions, but you know that the walls, base and top are of uniform thicknesses, you must subtract twice the wall thickness and twice the base thickness from each of these measurements first. read more