Cookies

We only set functional, analytics or advertising cookies once you choose to. You can reject all, allow functional cookies only, accept everything, or change your choice at any time using “Cookie settings” in the footer of any page — it reopens the same choice shown on your first visit.

Strictly necessary

We do not set any cookies to run the calculators themselves. We do not save calculator inputs or results. We store your cookie choice in your browser’s local storage so you do not have to choose on every page.

Functional (optional)

Reserved for cookies that remember a preference you have set, such as a display setting or a saved choice on a calculator. We do not currently set any functional cookies, but choosing “Functional only” lets you opt in to these ahead of any we add, without also allowing analytics or advertising.

Analytics (optional)

With your consent, Google Analytics sets cookies to distinguish visitors and measure how the site is used in aggregate, so we can see which calculators are useful. Until you accept, Google’s Consent Mode keeps this cookie-free: Google may receive measurements without an identifying cookie.

Advertising (not yet active)

We intend to show ads through Google AdSense to help cover hosting costs; this is not switched on in the current version of the site. When it is, advertising cookies will only be set if you accept them here, and you will be able to choose non-personalised ads or none at all.

Changing your choice

Select “Cookie settings” in the footer of any page to reopen the cookie banner and change your choice. Rejecting cookies does not stop you using any calculator.

More about these cookies

Google explains its own cookies at policies.google.com/technologies/cookies, and you can opt out of Google Analytics across sites using Google’s browser add-on.