Contact
We would love to hear from you, whether you have spotted a mistake in a calculator, want to suggest a new one, or have a general question.
Write to us at hello@allcalcy.com and we will read every message.
Reporting an error
Accuracy is the whole point of this site. If a result looks wrong, please tell us which calculator it was and the numbers you entered, and we will investigate and fix it quickly.
Suggesting a calculator
If there is a calculation you wish existed, send it over. Practical, well-defined tools are exactly what we want to build next.