Last updated: September 2026
Every calculator on this site runs entirely in your browser. The numbers you enter never leave your device. We do not require accounts, we do not ask for your email to show results, and we do not sell data.
We do not collect personal information. We do not require accounts, and we never ask for your email to see a result. Every calculator runs in your browser, so the numbers you type are never transmitted to us.
We use aggregate analytics to count page views and understand which calculators get used. These reports are statistical rather than personal: they tell us that a page was visited, not who visited it. Our analytics provider does not use cookies for this and does not build individual profiles.
This site is supported by advertising. Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this website and other websites. Google's use of advertising cookies enables it and its partners to serve ads to you based on your visits to this site or other sites on the internet.
You can opt out of personalized advertising by visiting Google's Ads Settings. You can also opt out of some third-party vendors' use of cookies for personalized advertising at aboutads.info. Clearing or blocking cookies in your browser settings will further limit ad personalization.
Third-party ad vendors and networks operate under their own privacy policies. We do not control the cookies they set, and we do not receive the personal data they collect.
The site is served by Cloudflare Pages, which may log basic technical request data such as IP address and user agent for security and delivery purposes, as is standard across the web.
If this policy changes materially, the updated date above will change and the change will be described on this page.
Questions about this policy, or about how advertising works on this site, can be sent to [email protected] or through our contact page.