Get in touch
Email us at hello@numutility.com. We aim to review genuine messages within five business days. Please do not send passwords, government identifiers, medical records, financial account details, or other sensitive personal information.
Reporting a calculator issue?
Include the page URL, the values you entered, the result shown, the result you expected, and the device or browser used. This helps us reproduce the problem without asking for private information.
Include the page URL, the values you entered, the result shown, the result you expected, and the device or browser used. This helps us reproduce the problem without asking for private information.
What we can help with
- Possible calculator errors or unclear formulas
- Accessibility or usability problems
- Requests for a useful calculator or guide topic
- Privacy, terms, or content correction questions
- Legitimate media or business inquiries
What we cannot provide
We cannot calculate or advise on individual medical treatment, legal rights, taxes, investments, lending, or other regulated decisions. The website provides general mathematical information, not professional advice. For urgent or case-specific questions, contact an appropriately qualified professional.