Privacy policy

Last updated November 9, 2026.

What the calculators do with your input

The calculators run in your browser. The numbers you type are not sent to us and are not stored.

Analytics

No analytics service is configured at the time of writing. If one is added, this page will name the vendor and what it collects.

Cookies and advertising

The site does not set cookies of its own. If an ad network or affiliate programme is added, it may set cookies, and this page will be updated before it goes live.

Affiliate links

If affiliate links are used they are labelled, and we may earn a commission at no extra cost to you.

Contact

Questions about this policy: see Contact. Related: Terms of use.