Privacy Policy

1. Analytics: Google Analytics

We use Google Analytics (GA4) to understand aggregate site usage — for example, which calculators are popular and whether pages load quickly. Google Analytics sets cookies on your device (such as _gaand _ga_*) and may collect information such as the pages you visit, your device and browser type, approximate location, and your IP address. IP addresses are subject to Google's own retention and anonymization practices. This data is processed in aggregate; we do not build individual user profiles and we do not combine analytics data with any personally identifying information.

You can opt out of Google Analytics tracking by installing the Google Analytics Opt-out Browser Add-on.

2. Advertising: Google AdSense

CalcUnit is free to use. To support the site, we may display ads served by Google AdSense. Google uses cookies — including the DoubleClick cookie — to serve ads based on your prior visits to our site and other sites on the internet, and to measure ad performance. These cookies may record which ads you viewed, which you clicked, and your approximate location, in order to show relevant advertising.

You can opt out of personalized advertising by visiting Google Ads Settings or the Digital Advertising Alliance opt-out page. Third-party vendors, including Google, may also serve ads; their use of cookies is governed by their own privacy policies.

3. Cookies We Use

In summary, cookies on this site fall into these groups:

• Analytics cookies — set by Google Analytics to measure site usage (_ga, _ga_*).
• Advertising cookies — set by Google AdSense / DoubleClick for ad personalization and measurement.
• Preference storage— your saved calculators and site settings (such as theme) are stored in your browser's local storage. This stays on your device and is never sent to our servers. You can clear it any time from your browser settings or the Settings page on this site.

You can block or delete cookies through your browser settings. Note that blocking cookies may affect how some site features behave.

4. What We Do NOT Collect

• CalcUnit has no accounts, sign-ups, or user profiles.
• We do not log or store the values you enter into calculator inputs on our servers.
• We do not sell personal information to anyone.

Pages are served from a global CDN. The hosting platform collects basic, non-personal server statistics (such as page request counts and referral sources) used only to detect broken links and monitor performance.

5. Frequently Asked Questions