Contact OmniCalc
For questions about a calculator or to report an error, email contact@omnicalc.info.
Reporting a calculation issue
Please include the calculator page URL, the values you entered, the displayed result and the result you expected. Mention your browser and device if the tool did not respond.
Do not send passwords, payment details, confidential financial records or other sensitive personal information. Use example numbers where possible.
Privacy questions
For a question about information you have shared with the site, state the nature of your request in your email. Read our Privacy Policy and Terms of Use for additional information.