Privacy Policy

Calculator Data

None of the calculators on this site, the main gravel coverage calculator or any of the six supporting pages, send the numbers you enter anywhere. Every calculation runs entirely in your browser: lengths, widths, depths, material choices and prices are held in the page's memory only for as long as the tab stays open, and none of it is transmitted to a server, stored in a database, or associated with you in any way. Closing or reloading the page clears it completely. There is no account system and nothing to sign up for anywhere on this site.

Contact Form

The contact form on the Contact page is a static demonstration: submitting it does not send an email, does not store your name, email address, or message anywhere, and there is no backend endpoint receiving that data. If a live contact channel is added in the future, this policy will be updated to describe exactly what is collected and how it's used before that change takes effect.

Cookies

This site does not set its own cookies for tracking, preferences, or session management. The Google Analytics service described in the next section sets its own cookies under Google's privacy policy, independent of anything this site controls directly.

Analytics

This site uses Google Analytics to measure aggregate page views and identify which calculators are most useful. Google Analytics collects anonymized or pseudonymized usage data, such as pages visited, approximate location at a country or region level, and device and browser type, and does not identify you personally. No data entered into a calculator field is ever included in analytics collection, since that data never leaves your browser in the first place.

Third-Party Services

This site is built with standard web hosting and content-delivery infrastructure, which may log basic technical information common to nearly all websites (IP address, browser user-agent, and request timestamps) for security and performance purposes, typically retained for a limited period as part of standard server logging. No advertising networks are currently integrated into this site. If that changes, this policy will be updated to name the specific services involved and link to their own privacy disclosures.

Children's Privacy

This site is a general-audience reference tool and does not knowingly collect information from children. Since the calculators themselves collect no personal data at all, there is nothing calculator-related to be concerned about regardless of who is using the tools.

Changes to This Policy

If the data practices described here change, such as a live contact form backend, a new analytics integration, or an advertising partnership, this page will be updated with a new "last updated" date and a description of exactly what changed, rather than a silent revision.

Contact

Questions about this policy can be sent through the Contact page.