Contact CalcHub

Last updated: April 2026

You can reach CalcHub at [email protected].

This inbox is the best place to report calculator bugs, possible formula issues, content corrections, privacy questions, and general feedback about the site.

What to include

If you are reporting a calculator issue, include the page URL, the values you entered, the result you expected, and any source you used for comparison. That makes it much easier for us to reproduce and review the problem.

Before you rely on a result

CalcHub calculators are designed for quick estimates and educational use. They do not replace professional advice for medical, financial, tax, or legal decisions. If the result affects an important decision, confirm it with a qualified professional and the official documents that apply to your situation.

Related pages

For more information about how the site is maintained, visit the About page. For privacy-specific details, see the Privacy Policy.