Privacy Policy
Last updated: September 12, 2026
This policy explains what information CalcOak ("we", "us") collects when you usehttps://calcoak.com, how it is used, and the choices you have. The short version: the tools themselves collect nothing, and the only third party involved is Google, which serves the ads that keep the site free.
1. Data you enter into the tools
Every calculator and converter on this site runs in your browser. The values you type (dimensions, prices, dates, tax amounts and so on) are processed on your device and are never transmitted to our servers or stored by us. Some tools may remember your last inputs using your browser's local storage so you do not have to re-enter them; that data stays on your device and you can clear it at any time through your browser settings.
2. Server logs
The site is hosted on Cloudflare Pages. Like most hosting providers, Cloudflare keeps standard server logs that may include your IP address, browser type, the page requested and the time of the request. These logs are used for security and to keep the service running and are subject toCloudflare's privacy policy.
3. Advertising and Google AdSense
We use Google AdSense to display advertisements. Google, as a third-party vendor, uses cookies to serve ads based on your prior visits to this website and to other websites on the internet. In particular, Google uses the DoubleClick / DART cookie and similar technologies to show ads that may be relevant to you.
- Third-party vendors, including Google, use cookies to serve ads based on a user's 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 visit to this site and/or other sites on the internet.
- You may opt out of personalised advertising by visiting Google Ads Settings. You can also opt out of a range of third-party vendors' cookies at www.aboutads.info.
- How Google uses data when you use our site is described at policies.google.com/technologies/partner-sites.
If you are in the European Economic Area, the United Kingdom or Switzerland, you will be shown a consent message before any personalised ads are loaded, and you can change your choice at any time.
4. Cookies
We do not set cookies ourselves. Cookies on this site come from Google AdSense as described above. You can block or delete cookies through your browser settings; the tools will continue to work normally without them.
5. Analytics
We may use privacy-focused, aggregate analytics (such as Cloudflare Web Analytics) to see which pages are visited and how often. This does not use cookies and does not identify individual visitors. If we add a different analytics provider in future, this policy will be updated.
6. Children
The site is not directed at children under 13 and we do not knowingly collect personal information from them.
7. Links to other sites
Some pages link to external websites, for example carrier rate pages or government tax authorities. We are not responsible for the content or privacy practices of those sites.
8. Changes to this policy
We may update this policy from time to time. The date at the top shows when it was last changed. Continued use of the site after a change means you accept the updated policy.
9. Contact
Questions about privacy can be sent through the contact page.