Privacy Policy
Last updated: October 20, 2026.
All calculations run locally in your browser. We do not ask for, store or sell the numbers you enter, and there are no accounts.
Logs and cookies
Our hosting provider may record standard server logs (such as IP address, browser and pages requested) for security and performance. We may use privacy-friendly analytics to count visits.
Advertising
We may show ads from third parties such as Google. Third-party vendors, including Google, use cookies to serve ads based on a user's prior visits to this and other websites. Google's use of advertising cookies enables it and its partners to serve ads based on visits to this and/or other sites. You can opt out of personalized advertising at Google Ads Settings or www.aboutads.info.
Contact
Questions: [email protected].