Contact

Write to contact@calcentral.org with questions about the site, its calculators or its articles. Every message is read.

Reporting an error

Every page has a “Report an error” link at the bottom. It opens your email program with the page address already filled in. Please add:

• what you entered and which result you expected,
• what the calculator showed instead,
• your browser and device, if the page itself misbehaved.

You do not need to send the part of the address after the # sign. It holds the values you typed, and they stay in your browser unless you choose to share them.

Accessibility

If something on the site is hard to use with assistive technology, write to the same address. See also the accessibility statement.