Last updated: October 18, 2026

Privacy policy

What we collect

Free Online Calculator has no login and no account. We do not ask for your name, email, or any identifier, and nothing you type into a calculator is sent to us. Calculator inputs are processed entirely in your browser. Basic server logs may include IP address, browser, and request time for security and reliability.

How we use it

We use information to protect the service, understand aggregate usage, prevent abuse, and improve our tools. We do not sell personal information.

Third parties

Vercel hosts the website. With your consent, Google Analytics processes anonymous usage data so we can see which calculators are useful. Advertising, analytics, or affiliate partners may process information under their own policies when those services are enabled.

Local storage

Your browser stores your consent choice and, on the pages you use, your recent calculation results. This stays on your own device, is never uploaded, and you can clear it at any time from the saved area or by clearing your browser data.

Your rights under GDPR

Depending on where you live, you may request access, correction, deletion, restriction, portability, or object to processing. Contact the site owner through the deployment account with enough detail to identify your request. You may complain to your local data protection authority.

Retention and security

We keep operational records only as long as reasonably needed for the purposes above and use reasonable technical safeguards. No online service can guarantee absolute security.