Privacy Policy

Last updated: April 28, 2026

Information we collect

Calculator Hub does not require an account, and we do not collect the values you enter into calculators — they are processed entirely in your browser and never sent to our servers. Server logs may temporarily record your IP address (forwarded by Cloudflare and our reverse proxy) and request metadata for security and traffic-analysis purposes. These logs are rotated regularly.

Cookies and local storage

We use a small number of cookies and browser local-storage entries:

• Theme preference — remembers your light/dark mode choice.
• Cookie consent — remembers your choice on the consent banner.
• Recently used calculators — improves the homepage experience.

See our Cookie Policy for full details.

Advertising

We use Google AdSense to display ads. Google and its partners may use cookies to serve ads based on your prior visits to this and other sites. You can opt out of personalized advertising by visiting Google Ad Settings or www.aboutads.info/choices.

Analytics

We may use Google Analytics or similar privacy-respecting analytics to understand which calculators are most useful. Analytics data is aggregated and does not identify individual users.

Your rights

Under GDPR and CCPA, you have the right to access, correct, or delete personal data we hold about you. Because we do not maintain user accounts, we typically have no personally identifying information to act on. For specific requests, email us via the contact page.

Children

Calculator Hub is general-audience and not directed at children under 13. We do not knowingly collect data from children.

Changes

We may update this policy from time to time. The "Last updated" date at the top reflects the most recent change. Continued use of the site after changes constitutes acceptance.