Privacy Policy

Last updated: September 7, 2026

The short version

All calculations on CalcHub run entirely in your browser. The numbers you type into any calculator are never sent to our servers, stored, or shared. We do not require accounts and do not collect personal information to use the site.

Data we process

• Calculator inputs: processed locally on your device only. They never leave your browser.
• Server logs: like most websites, our hosting provider records standard technical data (IP address, browser type, pages requested) for security and reliability. These logs are retained briefly and not used to identify you.

Advertising and cookies

CalcHub does not currently display advertising or load advertising technology. If we introduce advertising in the future, we will update this policy before it is enabled to explain the advertising providers, cookies and similar technologies involved, and the choices available to you.

Any future Google advertising implementation will include the consent tools required for affected visitors before advertising cookies or personalized ads are used. You can learn more about how Google uses information from sites and apps that use its services at policies.google.com/technologies/partner-sites.

Analytics

We use Cloudflare Web Analytics to understand aggregate page performance and traffic patterns. Cloudflare describes this service as privacy-first and cookie-free; it collects performance metrics and does not collect or use visitors' personal data. Learn more in Cloudflare's Privacy Policy. If we add other analytics services, we will update this policy to identify the provider, the data it processes, and any applicable choices.

Children's privacy

The site is a general-audience reference tool and does not knowingly collect personal information from anyone, including children under 13.

Changes and contact

We will update this page if our practices change, with the date above revised accordingly. Questions? See the contact page for how to reach us.