Privacy Policy

Last updated: September 26, 2026

This Privacy Policy explains how Gravel Calculator (“we”, “us” or “our”) handles information when you visit https://gravelcalculations.com (the “Site”). By using the Site, you agree to the practices described here.

1. Information We Collect

Information you give us

If you email us, we receive your email address, your name if you include it, and anything you write in your message. We use this only to reply to you.

Information collected automatically

Like most websites, our server and service providers automatically receive standard technical information, such as your IP address, browser type, device type, pages visited, referring page and the date and time of your visit. This is used to keep the Site secure, fix problems and understand how the Site is used.

Calculator inputs

The numbers you type into the calculator are processed in your own browser. We do not store your measurements on our servers. The calculator may save small preferences, such as imperial or metric units, in your browser’s local storage so it remembers them next time. If you use the Share link button, your inputs are placed in the link itself so the person you send it to sees the same numbers.

2. How We Use Information

• To run, maintain and improve the Site and the calculator
• To reply to messages and support requests
• To understand which pages and features are useful
• To show advertising that keeps the Site free
• To protect the Site against spam, abuse and security threats
• To meet legal obligations

We do not sell your personal information.

3. Cookies

Cookies are small text files stored on your device. We and our partners use cookies and similar technologies to make the Site work, remember preferences, measure traffic and serve ads. You can block or delete cookies in your browser settings. Some parts of the Site may not work as well without them.

4. Advertising and Google AdSense

We use, or may use, Google AdSense to show advertisements on the Site. Please note:

• Third-party vendors, including Google, use cookies to serve ads based on your previous visits to this website or other websites.
• Google’s use of advertising cookies enables it and its partners to serve ads to you based on your visits to this Site and/or other sites on the Internet.
• You may opt out of personalised advertising by visiting Google Ads Settings.
• You can also opt out of some third-party vendors’ use of cookies for personalised advertising at www.aboutads.info or, in Europe, www.youronlinechoices.eu.

To learn more about how Google uses data, see How Google uses information from sites or apps that use its services. Visitors in the European Economic Area, the UK and Switzerland will be asked for consent before personalised ads or non-essential cookies are used, where the law requires it.

5. Analytics

We may use analytics services, such as Google Analytics, to understand how visitors use the Site. These services collect information such as pages viewed and time on site using cookies. The information is used in aggregate to improve the Site. You can opt out of Google Analytics with the Google Analytics opt-out browser add-on.

6. Third-Party Links

The Site may link to other websites, such as suppliers or references. We are not responsible for the privacy practices of those websites, so please read their policies.

7. How Long We Keep Information

We keep emails for as long as needed to answer your message and for our records, then delete them. Server logs are kept for a limited time for security and troubleshooting.

8. Security

The Site uses HTTPS encryption, and we take reasonable steps to protect information. No method of transmission or storage is completely secure, so we cannot guarantee absolute security.

9. Your Privacy Rights

Depending on where you live, you may have the right to access, correct or delete personal information we hold about you, object to or restrict certain processing, withdraw consent, and ask for a copy of your information. This includes rights under the GDPR and UK GDPR, and for California residents, the CCPA/CPRA, including the right to know and delete, and the right to opt out of the “sale” or “sharing” of personal information. We do not sell personal information.

To make a request, email [email protected]. We will reply within the time required by law.

10. Children’s Privacy

The Site is not directed at children under 13 (or under 16 in the EEA and UK), and we do not knowingly collect personal information from them. If you believe a child has sent us personal information, contact us and we will delete it.

11. International Visitors

The Site is used worldwide. Information may be processed in countries other than your own, including by our hosting and advertising partners, with appropriate safeguards where required.

12. Changes to This Policy

We may update this Privacy Policy from time to time. The “Last updated” date at the top shows when it last changed. Please check this page occasionally.

13. Contact Us