Privacy Policy

Last updated: November 2026

1. Overview & Fundamental Principles

Your privacy is central to how Concrete Calculator is designed. Your project dimensions, material choices, and calculator inputs never leave your device. We do not sell personal data, we do not require account creation or personal registration, and all non-essential analytics and advertising cookies operate strictly in accordance with your consent preferences and regional regulations.

2. Calculator Data Stays in Your Browser

All calculations on www.concretecalculator.xyz run entirely client-side using JavaScript in your browser. The measurements, thicknesses, bag sizes, and pricing details you enter are not transmitted to our servers, stored in a database, or shared with third parties.

3. Analytics & Performance Cookies

To understand aggregate site traffic and discover which calculators need enhancement, we use Google Analytics (Measurement ID: G-9LT6CBDLCF).

  • Consent-Gated Loading: Google Analytics cookies (such as _ga and _ga_*) are not loaded until you affirmatively click "Accept Analytics" on our cookie notice.
  • Information Collected: When granted, Google Analytics collects pseudonymous, aggregated data including pages visited, referral sources, general country-level geographic location, and device/browser types. It does not track personal identity.
  • Your Choices: You can decline analytics cookies when visiting our site or clear your browser's localStorage (key: cookie_consent) to reset your preferences. You can also use the official Google Analytics Opt-out Browser Add-on.

4. Third-Party Advertising & Google AdSense

To keep our engineering calculators and educational guides completely free for builders, contractors, and DIY property owners, we may display advertisements provided by third-party advertising networks, including Google AdSense.

  • Advertising Cookies: Third-party vendors, including Google, use cookies to serve ads based on a user's prior visits to our website or other websites on the Internet.
  • Google's Advertising Cookies: Google's use of advertising cookies (such as the DoubleClick cookie) enables it and its partners to serve ads to our users based on their visits to our site and/or other sites across the World Wide Web.
  • Personalized Advertising Opt-Out: Users may opt out of personalized advertising by visiting Google Ads Settings. Alternatively, users can opt out of a third-party vendor's use of cookies for personalized advertising by visiting the Network Advertising Initiative / AboutAds.info choice page.
  • Consent in the EEA, UK & Switzerland: For visitors located in the European Economic Area, the United Kingdom, and Switzerland, advertising and measurement cookies are served strictly through a Google-certified Consent Management Platform (CMP) complying with the IAB Europe Transparency and Consent Framework (TCF v2.2), ensuring no personalized advertising cookies load without explicit prior consent.

5. Contact Form Inquiries

If you send us an inquiry via our contact form or email, we receive your name, email address, and message. We use this information solely to respond to your question or process your calculation feedback. We do not enroll contact form submitters in marketing mailing lists or share contact details with advertisers.

6. Hosting & Technical Infrastructure

The Site is hosted on Vercel's global edge network and loads web typography from Google Fonts. These infrastructure providers process standard technical HTTP request logs (such as visitor IP addresses) strictly for security, DDoS mitigation, and content delivery.

7. Your Privacy Rights (GDPR, CCPA & Global)

Depending on your location (including the European Economic Area under GDPR and California under CCPA/CPRA), you have rights regarding your personal data, including the right to request access, correction, or deletion of any communications you have sent us. To exercise these rights, email us at hello@concretecalculator.xyz.

8. Changes to This Policy

Any revisions to our privacy practices will be documented on this page with an updated revision date.