Cookie Policy

What are cookies

Cookies are small text files stored on your device by your browser. Calcooo's core functionality — every calculator — does not require cookies to work, since calculations run entirely client-side.

Local storage, not cookies

Where Calcooo remembers something about your visit — like your dark/light theme preference or a calculator's "recent calculations" history — it uses your browser's local storage rather than cookies. This data stays on your device and is never transmitted to us.

Advertising cookies

If this site displays third-party advertisements (for example, through Google AdSense), those advertising partners may set their own cookies to serve relevant ads and measure ad performance. We do not control these cookies directly; please refer to your ad provider's own cookie and privacy policies for details, and use their opt-out tools if you'd prefer not to receive personalized ads.

Managing cookies and local storage

You can clear cookies and local storage for this site at any time through your browser's settings, or by using the "Clear history" button available on individual calculator pages.

Changes to this policy

We may update this Cookie Policy from time to time. Continued use of the site after changes are posted constitutes acceptance of the updated policy.