Last updated: August 5, 2026

Overview

CalcTools is a free suite of online calculators that run entirely in your browser. We do not have user accounts, we do not ask you to sign up, and we do not store your calculator inputs on any server. This policy explains the limited information we and our third-party partners (such as Google) process when you visit this site.

Information We Collect

Because the site is hosted as static pages on Cloudflare Pages, the hosting provider automatically receives standard technical information when you visit, including:

• Your IP address and approximate geographic region
• Browser type and version, device type, and operating system
• Pages you visit, the dates and times of those visits, and your referring website

We do not collect your name, email address, or any personal details unless you voluntarily contact us through the contact page.

Cookies & Advertising

We use Google AdSense to display advertising on the site. Google and its partners use cookies (including the DoubleClick cookie) to serve ads based on your prior visits to this site and other websites across the Internet.

You may opt out of personalized advertising by visiting Google Ads Settings, or opt out of third-party vendors' use of cookies for personalized advertising by visiting www.aboutads.info. If you are in the EEA or the UK, we will request consent for non-essential cookies before any advertising cookies are set.

Analytics

We may use privacy-friendly analytics to understand aggregate traffic patterns (for example, which calculators are most used). Any analytics tool we use runs with anonymized IPs wherever possible, and we never use it to identify individual visitors.

Third-Party Links

Our pages may contain links to external websites. We are not responsible for the privacy practices of those sites, and we encourage you to read their privacy policies.

Data Security

The site is served over HTTPS from a static, serverless CDN (Cloudflare Pages). There is no database, no user accounts, and no stored user content on our side, which minimizes the data that could ever be at risk.

Children's Privacy

This site is not directed at children under the age of 13, and we do not knowingly collect personal information from children.

Your Rights & Choices

• Opt out of ads: use Google Ads Settings or the Network Advertising Initiative opt-out page.
• Delete cookies: you can clear or block cookies through your browser settings.
• EEA/UK residents: under the GDPR you have the right to access, correct, or delete any personal data we hold. Since we hold no account data, this effectively means contacting us and requesting that we remove any correspondence.
• California residents: under the CCPA/CPRA you may request information about, or deletion of, personal information we hold. Contact us using the details below.

Changes to This Policy

We may update this policy from time to time. Any changes will be posted on this page with a revised "last updated" date. Significant changes will be noted here.

Contact

Questions about this policy? Reach us through the contact page.