What the calculators do with your numbers
Every calculator on this site runs entirely in your browser. The figures you type are used to render a result on the page and are never sent to us, stored on our servers, or shared with anyone. Closing the tab discards them.
We do not ask you to create an account, and we do not operate a newsletter, a login, or a comment system.
Server logs
Our hosting provider keeps ordinary web-server logs: the address requested, the time of the request, the referring page, the browser's user agent, and the IP address the request came from. These records exist to keep the site available and to investigate abuse. They are not used to build a profile of you and are not sold.
Advertising
This site is supported by advertising. Google and its partners act as third-party vendors and may serve ads on the pages you visit.
- Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this site or to other websites.
- Google's use of advertising cookies enables it and its partners to serve ads to you based on your visit to this and other sites on the internet.
- You can opt out of personalised advertising in Google Ads Settings, and out of a wider set of vendors at aboutads.info or youronlinechoices.com.
- Google's own description of the data it processes for partner sites is published at How Google uses information from sites or apps that use our services.
Opting out of personalised advertising does not remove advertising; it makes the ads you see less specific to you.
Consent in the European Economic Area, the United Kingdom and Switzerland
If you are in one of these regions, personalised advertising and the cookies behind it require your consent. You are asked for that choice before such cookies are set, and you can change or withdraw it at any time from the cookie notice page.
Analytics
This site uses Yandex Metrica to understand how pages are used. It sets cookies, records page views, clicks and scrolling, and — through its session replay feature — a reconstruction of how a page was used. Metrica is operated by Yandex under its own privacy policy, and you can opt out with the Metrica opt-out extension or by blocking cookies for this site.
The calculators still run entirely in your browser: the numbers you type are not submitted to us and are not part of what Metrica reports.
Children
This site is intended for a general adult audience and is not directed at children under 13. We do not knowingly collect personal information from children.
Your choices
Browsers let you block or delete cookies for individual sites, and most offer a private browsing mode that discards them at the end of a session. Blocking cookies does not affect the calculators, because they need none to work.
Changes to this policy
If the way this site handles data changes, this page is updated before the change takes effect, and the date at the top changes with it.
Contact
Questions about this policy: [email protected].