Privacy policy

Last updated 2026-10-26.

What you type into the calculators

The calculators run in your browser. The ages, weights and other values you enter are not sent to our servers.

Server logs

Like most websites, our hosting provider records technical data such as IP address, browser type and the pages requested. This is used to deliver the site, keep it secure and measure traffic.

Cookies, advertising and analytics

We may use analytics or advertising services in the future. Those providers may set cookies or similar technologies to measure visits and show ads. When we add them, this policy will be updated to name them and explain your choices.

Contact

Questions about this policy can be sent to contact@petnumbers.org.