Calculate the volume of a plant pot

If you want to grow a fruit tree in a planter or container, you will need to make sure it is big enough for the tree. Our handy calculator will help you work out the volume of your container from its dimensions.

My measurements are in: centimetres  inches    Start again


A traditional flower-pot is circular, and wider at the top than the bottom.

Diameter across top (cm)

Diameter across bottom (cm)

Vertical height (cm)

Rectangular planter

Use this calculator for square or rectangular planters and containers.

Length of longest side (cm)

Length of shortest side (cm)

Vertical height (cm)

Cylindrical pot

Cylindrical planters and containers are circular and the diameter of the top and the base are the same.

Diameter across top (cm)

Vertical height (cm)

Further advice on growing fruit trees in containers

Our article on growing fruit trees in pots and containers has more advice. For dwarf apple trees you will need a container of at 40-60 litres, and for all larger fruit trees the starting point is likely to be 140 litres.