The short version
We don't collect any personal data. All calculations happen locally in your browser. We don't use cookies for tracking. We don't sell data because we don't have any.
1. Information We Collect
RatioCalculate.com does not collect, store, or transmit any personal information. All ratio calculations, inputs, and results are processed entirely within your web browser and are never sent to our servers.
We do not use accounts, logins, or user profiles. There is no registration required to use any of our tools.
2. Cookies
We use a single, strictly necessary cookie to remember your dark/light mode preference (theme). This cookie is stored in your browser's localStorage — not a tracking cookie — and contains only the value "dark" or "light". It is never shared with third parties.
We do not use advertising cookies, analytics cookies, or third-party tracking cookies of any kind.
3. Analytics
We may use privacy-respecting, cookieless analytics (such as aggregate page view counts) to understand overall traffic patterns. This does not involve tracking individual users, IP addresses, or personal identifiers. No data is sold or shared with advertising networks.
4. Third-Party Services
We load fonts from Google Fonts (fonts.googleapis.com). When your browser requests these fonts, Google's servers may log your IP address as part of their standard server logging. We have no control over Google's data practices. Please refer to Google's Privacy Policy for details.
5. Children's Privacy
RatioCalculate.com is a general-purpose mathematical tool suitable for all ages. Because we do not collect any personal data from anyone, there are no special concerns regarding children's privacy under COPPA or GDPR-K.
6. Data Security
Since we do not collect or transmit personal data, there is no personal data at risk on our servers. All computation happens client-side (in your browser). Your calculation inputs never leave your device.
7. Your Rights
Under GDPR, CCPA, and similar regulations, you have the right to access, rectify, and delete personal data we hold about you. Since we hold no personal data, there is nothing to access, rectify, or delete. If you have questions, please contact us.
8. Changes to This Policy
We may update this Privacy Policy from time to time. Changes will be reflected by updating the "Last updated" date at the top of this page. Continued use of RatioCalculate.com after changes constitutes acceptance of the updated policy.
9. Contact
If you have questions about this Privacy Policy, please contact us at privacy@ratiocalculate.com.