Contact Us
Questions, corrections and ideas are welcome.
We read every message about errors, suggestions and general questions about the site.
What to include
- For a calculation error: the calculator name, the numbers you entered and the result you expected, with how you worked it out.
- For a feature idea: a short description of the calculation you need.
- For privacy requests: see the options in our Privacy Policy.
What we cannot do
We cannot provide personal financial, tax, legal or medical advice, and we cannot see or recover anything you have typed into a calculator, because the calculations happen in your browser. For advice about your own situation, please speak to a qualified professional.
This site has no contact form or backend, so please use the email address above.