How we handle data and cookies on CalcHeadquarters. Last updated June 2026.
This Privacy Policy explains what information is collected when you use CalcHeadquarters.com ("the site"), how it is used, and the choices you have. By using the site, you consent to the practices described here.
Our calculators run entirely in your browser — the numbers you type into a calculator are processed on your device and are not sent to or stored on our servers. We do collect standard, non-identifying usage information automatically, such as pages visited, browser type, device, and referring source, through analytics and advertising tools described below. We also collect any information you choose to send us directly, for example when you email us.
The site uses cookies and similar technologies to understand how visitors use the site and to support advertising. We use Google Analytics to measure traffic and improve the site. Analytics cookies help us see which calculators and guides are most useful so we can prioritize them.
CalcHeadquarters is supported by advertising. We use Google AdSense to display ads. Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this and other websites. Google's use of advertising cookies (including the DoubleClick cookie) enables it and its partners to serve ads to you based on your visits to our site and/or other sites on the internet.
You may opt out of personalized advertising by visiting Google Ads Settings. You can also opt out of some third-party vendors' use of cookies for personalized advertising at aboutads.info/choices. For more on how Google uses data, see Google's policy.
You can disable cookies in your browser settings, though some features may not work as intended. Depending on where you live, you may have rights under the GDPR (EU/UK) or CCPA (California) to access, correct, or delete personal information we hold about you, or to opt out of the "sale" or sharing of personal information. To exercise any of these rights, contact us using the details below.
CalcHeadquarters is intended for a general audience and is not directed at children under 13. We do not knowingly collect personal information from children. If you believe a child has provided us information, please contact us and we will remove it.
We retain analytics data only as long as needed to operate and improve the site. We take reasonable measures to protect information, but no method of transmission over the internet is completely secure.
We may update this policy from time to time; material changes will be reflected by the "last updated" date above. Questions about this policy can be sent through our contact page.