Support and website feedback
Use this page for calculator questions, correction reports, accessibility feedback, and advertising or privacy inquiries. We do not provide individual financial, tax, investment, or legal advice.
Last updated:
General support
Support email
Email us with calculator questions, correction reports, accessibility feedback, or privacy and advertising inquiries.
Include your preferred reply language. We do not guarantee a response time or provide individual professional advice.
Preparing a helpful request
- Include the page URL, calculator name, browser, and the language you are using.
- Describe the expected result and what happened. Use made-up amounts to demonstrate an issue rather than sharing confidential business figures.
- For accessibility feedback, explain the control or text that was difficult to use and any assistive technology involved.
- Do not send passwords, payment details, identity documents, or personal financial records.
Privacy and advertising questions
Our Privacy Policy explains current calculator data handling and planned third-party services. Advertising Disclosure explains how ads would be identified and kept separate from calculator content.
Privacy Policy | Advertising Disclosure | Contact
Explore the calculators and their guides.