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Privacy Policy

Last updated: October 4, 2026

The short version

Calculator collects no personal data. There are no accounts, no sign-ups, and no forms that send your information to us — except the contact form, which opens your own email app. Every calculator runs entirely in your browser: the numbers you type never leave your device.

What we do not collect

  • Calculator inputs: loan amounts, investment figures, health measurements and dates you enter are processed locally by JavaScript in your browser. They are never transmitted to our servers, because there is no server-side processing at all.
  • Personal identifiers: we do not ask for your name, email, phone number or address anywhere on the site.
  • Tracking: we do not use analytics cookies, advertising trackers or fingerprinting to follow you across the web.

Cookies

Calculator does not set any cookies of its own. If the site is ever served with third-party services in the future (for example, an analytics tool), this policy will be updated to describe them before they are enabled.

Contact form

The contact page does not submit data to us directly. It composes an email in your email application addressed to us — what you send is governed by your email provider's own privacy policy, and we use it only to reply to your message.

External links

Calculator may link to external websites. We are not responsible for the privacy practices of those sites; please review their policies before sharing information with them.

Children

Calculator is a general-audience site that collects no data from anyone, including children under 13. Because nothing is collected, there is nothing to request, correct or delete.

Changes to this policy

If this policy changes, the updated version will be posted here with a new "last updated" date. Because we collect nothing, any future change would only ever describe less collection in more detail — never more.

Contact

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