Privacy policy

Last updated October 20, 2026.

What you type into the calculators

The calculators run entirely in your browser. The numbers you enter are not sent to us or to anyone else, and they are not saved.

Information we collect

We don't ask for your name, email or any account details, and we don't set cookies.

Like every website, our hosting provider receives standard technical information when your browser requests a page, such as your IP address and browser type. It is used to deliver the site and protect it from abuse.

Third-party services

Our fonts are served from this site, so loading a page doesn't contact Google Fonts or any other font service.

We count visits with Cloudflare Web Analytics, a small script from our hosting provider. It doesn't use cookies or follow you to other sites. It tells us which pages are read and general details such as the referring site, browser, device type and country, so we can see which pages help people.

If we add advertising in the future, we will update this page before doing so and explain what it collects and how to opt out.

Links to other sites

Some pages link to other websites, such as Costco's. Their privacy policies apply once you leave our site.

Contact

Questions about this policy? Contact us.