Last updated: June 2025
CalcHub provides free calculator tools. All calculations run entirely in your browser — no inputs or results are sent to our servers.
We do not collect personal data, financial data, health data, or any inputs you enter into our calculators. No account is required.
CalcHub uses Google Analytics 4 to understand which calculators are most popular. This data is anonymised and aggregated — it cannot identify individual users. Google's use of analytics data is governed by the Google Privacy Policy.
CalcHub is partnered with Google AdSense to display advertisements. Google AdSense uses cookies and similar tracking technologies to serve personalised ads based on your browsing history. Google's collection and use of data is governed by the Google Privacy Policy. You can opt out of personalised advertising at google.com/settings/ads or visit aboutads.info/choices.
CalcHub stores your light/dark mode preference in your browser's localStorage. No tracking cookies are set by CalcHub itself. Google AdSense and Google Analytics may set their own cookies as described in section 4 above.
CalcHub may link to external resources. We are not responsible for the privacy practices of external sites.
You can opt out of personalised Google ads at google.com/settings/ads. You can also manage or disable cookies through your browser settings at any time.
Questions about this policy can be directed to us via our Contact page.