Contact

This site is created and maintained by the WhiteCalc team. We read every message, and reports about wrong results or confusing explanations are the most useful feedback we get.

Email

hello@whitecalc.com

Email is the only way to contact us. There is no phone line, chat or postal address, and the site has no accounts or comment forms.

How to report a calculation error

A good report lets us repeat the problem in a minute. Please include:

• Which calculator. Basic, scientific, percentage, date, time, age or fraction, or the address of the page.
• What you entered. The exact numbers, dates or times, and the expression shown on the screen if you used the keypad.
• What you saw. The result the calculator showed, copied or in a screenshot.
• What you expected. The answer you believe is correct, and how you worked it out. A hand calculation or a trusted source is ideal.
• Your device. The phone or computer, the browser, and the language of the page.

Please do not send passwords, bank details, ID numbers or other personal data. We never need them.

What to expect after you write

• We reply as soon as we can. Messages about a wrong result are looked at first.
• If the result is wrong, we fix the calculator, add a test so the mistake cannot return, and thank you in our reply.
• If the result is correct, we explain why, with the steps. Many reports turn out to be a different way of counting, such as including the first day or counting age by birth year.
• We cannot give personal legal, medical, tax or financial advice. For decisions like these, please ask an official source or a professional.
• Not every message can receive a personal reply, for example unsolicited sales offers.

Other messages

Questions about privacy, such as how cookies and ads work, can be sent to the same address. See the privacy policy first, because it answers most of them. The rules for using the site are in the terms of use.