Privacy Notice

Last updated: 26 September 2026

This notice covers two things: the cookies this site uses when you browse it, and what happens when you use the "email these results" feature on our calculators.

Cookies

We use a small number of cookies, and we only set the ones below once you choose "Accept all" in the cookie banner. If you choose "Reject non-essential" instead, these aren't set. You can change your choice at any time using the "Cookie settings" link in the footer.

• Google Analytics — helps us understand how many people visit the site and which guides are useful, using anonymised, aggregated statistics. We don't use this to identify you personally.
• Google AdSense — used to show adverts that help cover the cost of running the site. This may involve cookies from Google and its advertising partners.

These cookies are controlled through Google's "Consent Mode," which tells Google not to set them until you've made a choice. Rejecting them doesn't stop the site working — you just won't be counted in our analytics, and any ads shown won't be personalised to you.

The "email these results" feature

This section explains what happens when you use the "email these results" feature on our calculators. It doesn't apply to browsing the site generally — only to the optional email capture form.

What we collect

• The email address you provide
• The calculator results you asked to be emailed (the figures you entered and the results calculated from them)
• The date and time of your request

Why we collect it

Solely to send you the email containing your results, at your request. We don't use this information for anything else, and we don't send marketing emails from the address that delivers your results.

Who can see it

Your email address and results are stored privately and are only accessible to the site owner. They are not sold, shared, or passed to any third party for their own marketing purposes.

Services we use to provide this feature

• Resend — a transactional email service used to deliver the results email to you
• Cloudflare — used to host the site and to store the record of your request securely

These providers process the data only as needed to deliver this feature and are bound by their own privacy and security terms.

How long we keep it

Stored records are kept only as long as needed for the purpose above. If you'd like your data deleted sooner, contact us using the details below and we'll remove it.

Your rights

Under UK data protection law, you have the right to ask what data we hold about you, request a copy of it, ask us to correct it, or ask us to delete it. To make a request, get in touch using the contact details below.

Contact

For any privacy questions or requests relating to this feature, contact us via the details on our homepage.