Last updated: January 2026
ConstrCalc collects only data you voluntarily submit through the Contact form: name, email, subject, and message. Nothing else is transmitted from your browser to our servers.
All calculator inputs, saved reports, and preferences live in your browser's localStorage. They never leave your device. Clearing your browser data clears them.
We use Google Analytics with anonymized IP addresses to understand aggregate site usage.
We use Google AdSense to display advertising. Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this and other websites. Google's use of advertising cookies enables it and its partners to serve ads to you based on your visits to ConstrCalc and other sites on the internet. These ads may be personalized unless you opt out.
You can opt out of personalized advertising by visiting Google Ads Settings. You can also opt out of a third-party vendor's use of cookies for personalized advertising at aboutads.info/choices. For more on how Google uses data when you use our site, see Google's partner-sites policy. See our Cookies Policy for the full breakdown.
Font Awesome, Google Fonts, Pexels images, and JavaScript CDN libraries load from third-party CDNs. These providers may log your IP address per their standard practices.
Submissions are stored in our database and used solely to reply to your enquiry. We do not sell, share, or repurpose this data.
Contact form submissions are retained for 24 months, then deleted.
To request deletion of any contact-form data associated with your email, write to info@constrcalc.com.
ConstrCalc is not directed at children under 13. We do not knowingly collect data from children.
Material changes will be dated at the top of this page. Continued use of the site constitutes acceptance.