Privacy policy
Last updated: August 13, 2026
DirtMath respects your privacy. This policy explains what information we collect, how we use it, and how advertising and affiliate partners work on this site.
Information we collect
Calculations on DirtMath run entirely in your browser. We do not collect your project dimensions, addresses, or any personal information through the calculators themselves. We may receive standard, anonymous web analytics data such as page views, referrer URLs, device type, and general geographic region via Google Analytics and Google AdSense.
Cookies and advertising
We use Google AdSense to display ads. Google and its partners may use cookies or similar technologies to serve ads based on your visit to this site and other sites on the Internet. These cookies may include:
- Google advertising cookies
- DoubleClick cookies used to serve personalized ads
- Third-party measurement and fraud-prevention cookies
You can opt out of personalized advertising by visiting Google Ads Settings or About Ads.
Affiliate links
DirtMath participates in the Amazon Services LLC Associates Program. Some links to products are affiliate links. If you click an affiliate link and make a purchase, we may earn a commission at no additional cost to you. Affiliate links do not influence our calculations or recommendations.
Children’s privacy
DirtMath is not directed to children under 13. We do not knowingly collect personal information from children.
Changes to this policy
We may update this policy from time to time. Updates will be posted on this page with a revised last-updated date.
Contact us
If you have questions about this privacy policy, email us at contact@dirtmath.com.