Last updated: September 2026
Your calculations are private
All calculators on FreeKalc run entirely in your web browser. The numbers you enter are processed on your own device and are never transmitted to, or stored on, our servers.
Cookies and analytics
We may use cookies and anonymous analytics to understand how visitors use the site (for example, which calculators are most popular) and to improve your experience. You can block cookies in your browser settings without affecting the calculators.
Advertising
This site displays advertising, and may include advertising provided by Google AdSense. Google and its partners may use cookies to serve ads based on your prior visits to this or other websites. You can opt out of personalised advertising by visiting Google's Ads Settings (adssettings.google.com).
Third-party links
Our pages may link to external websites. We are not responsible for their content or privacy practices.
Children's privacy
FreeKalc is not directed at children under 13 and we do not knowingly collect personal information from children.
Contact
Questions about this policy? Email contact@freekalc.com.