Privacy policy
Last updated: November 9, 2026
What we collect
The numbers you type into our calculators are processed in your browser and are never sent to or stored on our servers. Our web host may keep standard server logs, such as IP address, browser type and pages visited, for security and performance.
Cookies and advertising
We use Google AdSense to show ads. 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 your visit to this site and other sites on the internet. You can opt out of personalized advertising at Google Ads Settings or aboutads.info.
Affiliate links
Some links on this site are affiliate links. Our partners may set cookies to track referrals from this site. See our affiliate disclosure.
Consent
Where the law requires it, such as in the European Economic Area and the United Kingdom, ads that use cookies load only after you accept. You can change your choice by clearing this site’s data in your browser.
Children
This site is not directed to children under 13 and we do not knowingly collect their personal information.
Your rights
Depending on where you live, you may have rights to access, correct or delete personal data. We hold very little, but you can send a request through our contact page.
Changes
We may update this policy. The date at the top will change when we do.