What we collect
Nothing you type into a calculator leaves your device. The site has no accounts, forms or comments. Our web server keeps standard access logs (IP address, page requested, browser type, time) for security and troubleshooting, and deletes them after 30 days.
Advertising
This site uses Google AdSense to show ads. 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 and other sites on the internet. Read how Google uses information from sites that use its services.
- You can opt out of personalized advertising in Google Ads Settings.
- You can opt out of some third-party vendors’ use of cookies for personalized advertising at aboutads.info/choices.
- Visitors in the European Economic Area, the United Kingdom and Switzerland are asked for consent through a Google-certified consent message before personalized ads or advertising cookies are used. You can change your choice at any time from that message.
Ads never change the prices, rankings or calculations on this site.
Cookies
We set no cookies of our own. The advertising cookies described above are set by Google and its partners. The site remembers the state you last picked on the home page in your browser’s local storage; it never leaves your device and you can clear it with your browser’s site data.
Children
The site is not directed at children under 13 and collects no personal information from them.
Changes
We will update this page when anything here changes. Last reviewed November 4, 2026.