Privacy policy

Short version: these are static pages. The numbers you enter are calculated in your own browser and never leave it.

What we collect

The site has no user accounts and no sign-in. At the time of writing it runs no analytics and sets no cookies of its own.

What you type stays with you

Every calculator on this site runs entirely in your browser. The times, distances and paces you enter are computed locally and are not uploaded, logged or stored on any server.

Advertising

We plan to show third-party advertising on these pages in the future. When that happens, ad vendors may set their own cookies or use other measurement technologies, governed by those vendors' policies. This page will be updated to describe it before ads appear.

Changes

If this policy changes, the new version replaces this page with a later date on it.

Last updated: October 2026.