Practical Calculators respects your privacy. This policy describes how information may be collected and used on this site.
We may use analytics tools (such as Google Analytics) to understand aggregate usage: for example, pages viewed, approximate location at region level, device type, and events like calculator interactions. These tools typically use cookies or similar technologies. You can learn how Google handles data at Google’s Privacy Policy and how Google uses information from sites that use its services at Google’s Partner Sites page.
If display advertising (such as Google AdSense) is enabled, ad partners may use cookies, local storage, or similar technologies to show ads, cap frequency, measure performance, and detect fraud. Ads may be personalized or non-personalized depending on your region and consent settings where required.
You can manage certain ad preferences through Google Ads Settings (when signed in to Google). Vendors’ own privacy notices describe additional cookie and storage practices.
This site is hosted on GitHub Pages. Like most hosts, GitHub may process technical data (such as IP address, user agent, and request logs) to deliver pages and maintain security. See GitHub’s Privacy Statement for details.
This site does not require account creation. If you use the contact form, your message and email address are processed by our form provider (Formspree) solely to deliver your inquiry to us and to reduce spam.
This site is not directed at children under 13, and we do not knowingly collect personal information from children.
Links to third-party sites are provided for convenience. Those sites have their own privacy practices.
We may update this policy from time to time. Continued use of the site after changes means you accept the updated policy.
Calculator results are for planning and learning; they are not professional advice. For data practices, cookies, and advertising, see the Privacy Policy.
Last reviewed: 2026-04-17