Privacy policy

Effective 2026-10-17.

Short version: we don't collect personal information. The calculators run entirely in your browser; the numbers you type are never sent to us.

What we collect

• No accounts, forms, newsletters, analytics, advertising scripts or cookies are used on this site.
• Our web host may automatically log technical data such as IP address, browser type and the page requested, to operate and secure the service. This site is hosted on Cloudflare Pages; see Cloudflare's privacy policy.

Links to other sites

Links to sources, retailers or our Etsy listing take you to sites with their own privacy policies and cookies. If a link is an affiliate link, the retailer may use a cookie to credit the referral.

Changes

If we ever add analytics, advertising or email signup, we will update this page before doing so and, where required, ask for consent.

Contact

Questions about this policy: [email protected].