STOCKWISEPrepared for less.

A lighter one

The loo roll question

How long will what is in the cupboard last? The sums are simple, the answer is usually "longer than you think", and the pyramid is drawn to scale beside a person so you can see it. Change any figure: every one of them is yours, not ours.

  1. 1Say how many rolls you have and who uses them
  2. 2Read how long they last
  3. 3Admire the pyramid, or share the link

What this is not

Stockwise has no idea how many sheets you use and would not dream of asking. The starting figures are plain guesses to get you going, labelled as such; change them to yours. GOV.UK Be Ready suggests keeping enough of what you use for three days, and lists water, food, a torch, a radio and a first aid kit, not loo roll; the three-day line on the page is theirs, the loo roll is your own business. Information, not advice, and only just information.

The bunker builder: the same spirit with a whole store room, drawn in three dimensions.