Privacy policy

Last updated January 2026.

The calculators run in your browser

HenryCalc has no user accounts and no backend database. The figures you type into a calculator are processed entirely in your browser and are never sent to or stored on our servers.

Cookies and advertising

This site is supported by advertising. We use Google AdSense to serve ads. Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this 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.
• You may opt out of personalized advertising by visiting Google Ads Settings.
• For more on how third parties use cookies in advertising, see aboutads.info.

Analytics

We use privacy-respecting analytics to understand which calculators are used, in aggregate. This does not identify you personally.

Your choices in the EEA and UK

If you are in the European Economic Area or the United Kingdom, you will be asked for consent to personalized advertising and analytics through our consent management platform before such cookies are set.

Contact

Questions about this policy? Email hello@henrycalc.com.