Last updated 14 November 2026.
FinsAndFigures is built to work without collecting personal data. This page explains what little processing does happen.
What we do not do
- No accounts, no sign-up, no newsletter forms.
- No tracking or advertising cookies.
- The numbers you type into a calculator are processed in your own browser. The calculation happens on your device; we keep no record of it.
What is stored in your browser
- Your unit preference (US or metric) is saved in your browser's local storage so the site remembers it. It never leaves your device, and you can clear it at any time through your browser's site-data settings.
- Calculator inputs in the address bar. When you change a value, it is added to the page address so that you can bookmark or share your result. If you share or reload that address, those numbers travel with it like any other web address.
Hosting and server logs
The site is delivered by Cloudflare, Inc. Like any web host, Cloudflare processes technical data needed to deliver pages and protect the service, such as your IP address, browser type and the page requested. We do not use this data to identify visitors. See Cloudflare's privacy policy.
Links to other sites
Some links lead to shops or other websites, and some may be affiliate links (see our editorial and affiliate policy). When you follow one, the other site's own privacy policy applies, and it may set its own cookies.
If you email us, we use your address and message only to reply and to fix the issue you raised. We do not add you to any list.
Your rights
Depending on where you live (for example under the GDPR in the EU and UK, or the CCPA in California), you have rights to access, correct or delete personal data held about you. Since we hold none beyond emails you choose to send us, a request to hello@finsandfigures.com is all that is needed.
Changes
If we add analytics or advertising in future, we will update this page first and, where the law requires it, ask for your consent.