Have a question, found a bug, or want to suggest a new calculator? We’d love to hear from you. Use the contact method that best matches your request — that helps us route it to the right person and take action.
Contact options
General inquiries & feedback
Email: [email protected]
Use this for questions about the site, general feedback, or ideas for improvement.
Contact form (example fields)
If you use the site form, please provide:
- Name
- Email (we’ll only use this to reply)
- Subject
- Message (clear description of your request)
- Attachment (optional: screenshot, example file)
Bug report template
To help us reproduce and fix issues quickly, include:
- Calculator page URL (copy the browser address)
- Brief description of the problem (what happened vs expected)
- Steps to reproduce (exact clicks/inputs you used)
- Browser & OS (e.g., Chrome 115 on Windows 10 / Safari on iPhone)
- Screenshot or console errors (optional but very helpful)
Privacy & security
We respect your privacy. Any personal data you send will be handled according to our Privacy Policy and used only to respond to your inquiry. Do not send sensitive personal information in plain text.
Want to contribute?
If you have sample data, formulas, or a tested methodology for a new calculator, send it to [email protected]. Clearly marked contributions help us evaluate and integrate community-submitted tools.
Thank you — your input makes Pro Calculators Lab better for everyone!