Privacy Policy

Do you save my concrete project dimensions?

The calculators run in your browser. The dimensions, prices, bag sizes, waste factors, and quantities you enter are used to calculate the result on the page. They are not submitted to a database, not tied to an account, and not used to create a lead profile. We do not require sign-up, a project address, phone number, or payment information to use the estimating tools.

What happens when I print or copy an estimate?

Printing or copying an estimate is a local browser action. The text is generated from the values currently on your screen so you can take it to a supplier, store, or job file. If you paste that estimate into another app, email, or supplier form, that external service controls what happens to the data after you share it.

How long do you keep calculator inputs?

We do not keep calculator inputs because they are not submitted to our server as project records. Server logs may record ordinary request data such as URL, timestamp, user agent, and IP-related connection information for security and operations, but those logs are not a saved concrete estimate and are not used to reconstruct your project.

What cookies does this site use?

We show a consent banner before loading non-essential scripts. The banner stores your choice in the browser so we know whether to load optional analytics or advertising scripts. Essential site behavior, such as calculator interaction and page navigation, does not require a tracking cookie. If you choose “Decline,” optional scripts are not loaded.

How can I change my cookie choice?

You can clear your choice by clearing this site's cookies or local storage in your browser. After clearing storage, the consent banner will appear again. Browser-level privacy controls, content blockers, and private browsing modes may also block analytics or advertising scripts regardless of the choice stored by this site.

Do you use Google Analytics?

With your consent we may use Google Analytics to understand aggregate usage, such as pages viewed, general location, device category, browser type, and engagement patterns. IP addresses are anonymized where supported. Analytics helps identify confusing calculators, thin help content, broken links, and pages that need clearer explanations.

Does the site show AdSense ads now?

Advertising placements are currently hidden until AdSense approval. After approval, and only when the runtime ad switch is enabled, we may display ads through Google AdSense to keep the calculators free. Third-party vendors, including Google, may use cookies, web beacons, IP addresses, and other identifiers to serve, personalize, and measure ads if you have accepted optional cookies.

Google's advertising cookies let Google and its partners serve ads to users based on their visits to this site and/or other sites on the Internet. Other third-party ad technology providers or ad networks may also use cookies or similar technologies for ad measurement, fraud prevention, frequency capping, and personalization where allowed by your consent choices and applicable law.

How do I manage ad personalization?

You can manage Google ad personalization in Google Ads Settings and My Ad Center. You can also use browser privacy controls, device settings, or industry opt-out tools where available. If you decline consent on this site, advertising scripts should not load from the site's runtime script manager. Some regions, including the EEA, UK, California, and other jurisdictions, may have additional choices under GDPR, CCPA, or similar laws.

Do you use sensitive data for ads?

We do not collect precise location, payment details, health information, government identifiers, or other sensitive personal information for advertising. We do not use Google ad products to build audience lists from child-directed activity, adult or gambling activity, government-site activity, or sensitive categories such as health, financial hardship, ethnicity, religion, crime, political affiliation, union membership, sexual behavior, or sexual orientation.

Is this site directed to children?

No. The site is written for homeowners, DIYers, and small crews planning concrete material quantities. It is not directed to children under 13, and we do not knowingly collect personal information from children.

What privacy rights do I have?

Depending on where you live, you may have rights to access, delete, correct, or restrict processing of personal data, and to opt out of the sale or sharing of personal information. Because the calculators do not require an account and project dimensions are not stored by us, many requests relate to optional third-party cookies that you control through consent and browser settings.

How do I make a privacy request?

To ask a privacy question, contact us at hello [at] concretematerialcalculator.com. Replace “ [at] ” with “@” in your email app. You can also review the terms of use and contact page for the site's estimate-only boundaries and support channel.