Cookie notice

This site sets no cookies. That is why there is no cookie banner: there is nothing to consent to.

1. What we don’t use

• No analytics or measurement cookies (we run no analytics at all).
• No advertising or tracking cookies today. If advertising is introduced, this page changes first and consent is asked where the law requires it.
• No preference or session cookies (there are no accounts or sessions).
• No local storage of your inputs, the calculator keeps your numbers in the page while it is open, and in the page address if you choose to copy a share link. Close the tab and they are gone.

2. Could anything ever appear?

Our hosting platform may use strictly necessary, security-related mechanisms at the network level (for example during a DDoS challenge). These are not used to track you and do not require consent under the UK’s Privacy and Electronic Communications Regulations.

3. If this changes

If we ever introduce cookies (for example privacy-respecting analytics) this page will be rewritten first, with each cookie named, its purpose and lifetime stated, and consent asked for where the law requires it. Until then: none.