Privacy

• No cookies, no accounts, no advertising, no analytics services. Every script, style, image and font comes from this site; nothing loads from anyone else.
• The calculator runs in your browser. The airports you pick are matched against a list your browser has already downloaded; nothing you type is sent to us.
• Your unit choice (kilometres or miles) is kept in your browser’s local storage so the next page uses the same units. It never leaves your device.
• Offline copy. The site registers a service worker that keeps copies of pages you’ve visited so they open without a connection. Clear this site’s data to remove them.

Server logs

Like almost every website, the server keeps a log of requests: the time, the page requested, the referring page, the browser's user-agent string, and a shortened network address (the last part of the IP address is removed before anything is written, so the log cannot point to one connection). The log is used only to count visits and to stop abuse, is never shared or sold, and is deleted after 30 days. The legal basis under the GDPR is legitimate interest in running and securing the site.

The hosting proxy in front of this site (measured 2026-10-26): successful requests are not logged there. Requests that fail at the proxy are recorded with the visitor's IP address and browser user-agent, with cookies and authorization headers redacted, and are currently kept until the proxy is restarted. A retention limit for those records is under review.