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Privacy Policy

Last updated: March 2026

Short summary

  • We do not require registration or login.
  • We do not sell your data to third parties.
  • We do not store conversion inputs you enter into calculators.
  • We use privacy-respecting analytics to understand which pages are useful.
  • We use no advertising networks.

What data we collect

When you visit UnitFormula, our analytics service collects standard server-side request data:

  • Pages visited and referrer URLs
  • Country-level location (not city or IP address)
  • Browser type and operating system
  • Whether you are a new or returning visitor (based on an anonymous cookie or local storage token)

This data is aggregated and used only to understand site usage and improve content. It is not tied to any personally identifiable information.

What we do not collect

  • Input values you enter into converters or calculators — these are computed locally in your browser and never sent to our servers.
  • Name, email, or contact information (unless you send a contact form message).
  • Payment information — this site is free.
  • Cross-site tracking identifiers.

Cookies and local storage

We store a single anonymous visitor token to distinguish unique visits for analytics purposes. This token contains no personal information and expires after 12 months. We do not use advertising cookies or third-party tracking cookies.

We may also store your UI preferences (such as dark/light mode) in local storage. This data stays in your browser and is never transmitted to our servers.

Third-party services

We use a hosting provider and a privacy-focused analytics service. Neither is permitted to use your data for advertising or to share it with other parties. We do not embed social media widgets, ads, or other third-party tracking scripts.

Contact

Questions about this policy? Contact us.