Water-saving calculator

Last reviewed:

Find out how much water and energy you use at home with our easy-to-use calculator. You’ll also see how much money you could save on your bills by making a few simple changes.

Note - the calculator has been optimised to work on the following:

  • Windows 10 – on a desktop, using the latest version of Chrome and Firefox, or IE 10, 11 and Edge
  • Mac OSX El Capitan – on a desktop, using the latest version of Safari, Chrome and Firefox
  • Mac iOS9 – for iPad: 2, Retina, Air, Air2 and Pro, using the latest version of Safari.

Save more water

From free gadgets to gardening tips, it's easy to save more water. Here's how:

Select your free water saving devices for your home

Find out how to spot a leaky loo

Get more advice on saving water at home and in the garden.