Privacy Policy

Last updated: 3 October 2026.

What this site collects directly

Nothing. There is no account, no sign-up and no contact form. The calculators run entirely in your browser — the values you type are never sent anywhere, and nothing you enter is stored or transmitted.

Advertising

This site displays advertising served by Google AdSense. Google and its partners use cookies and similar technologies to serve ads based on your prior visits to this and other websites, and to measure ad performance.

You can opt out of personalised advertising in Google Ads Settings, or opt out of third-party vendor cookies at aboutads.info. Google’s description of how it uses data from sites using its services is at policies.google.com/technologies/partner-sites.

Hosting and server logs

The site is served as static files by Cloudflare, which processes standard request data including IP address, user agent and requested URL to deliver the site and protect it from abuse. That data is handled under Cloudflare’s privacy policy.

Children

This site is not directed at children under 13 and does not knowingly collect information from them.

Your rights

Because this site holds no personal data of its own, there is nothing here to access, correct or delete. Requests about advertising data go to Google; requests about hosting logs go to Cloudflare.

Changes

Any change to this policy will be posted on this page with a new date at the top.