Contact Best Calculators

Use this page to report calculator errors, request a new calculator, suggest content corrections, share feedback, or discuss partnership opportunities.

Email Us

The best way to contact us for calculator feedback, bug reports, correction requests, and business inquiries.

[email protected]

Response Time

We review every message and prioritize reports that include enough detail to reproduce the issue. Response times can vary depending on request volume and the complexity of the correction or calculator request.

When Contacting Us, Please Include:

  • Calculator name and page URL
  • Detailed description of your question, issue, or calculator request
  • Inputs, expected output, and screenshots for bug reports
  • Browser/device info (if experiencing issues)
  • Supporting source links for formula or content corrections

We Can Help With

  • General Questions

    How to use calculators, understanding results

  • Bug Reports

    Incorrect calculations, broken features, or unexpected outputs

  • Feature Requests

    New calculator ideas, missing inputs, and workflow improvements

  • Content Corrections

    Formula updates, wording fixes, and source-based corrections

  • Business Inquiries

    Partnerships, advertising, collaborations

  • Feedback

    Suggestions for improving the site

Ready to reach out?

We read every email and respond personally.

Send Email

Frequently Asked Questions

Quick answers about contacting us, reporting calculator issues, and requesting new tools

How do I report a bug or error in a calculator?

Email us with the calculator name, the page URL, the inputs you used, and the expected versus actual result. Screenshots and device details also help us reproduce calculator bugs faster.

How do I suggest a new online calculator?

Send us the calculator idea, who it is for, the inputs it should include, and the output you expect. Requests with a clear use case are easier to review and prioritize.

How can I request a correction to calculator content or formulas?

If you spot a formula issue, outdated rate, or wording problem, email us with the page name, the correction you suggest, and any source or reference that supports it.

Are your calculators free to use?

Yes, all 638 calculators on Best Calculators are free to use with no sign-up required.

How often are calculators updated?

Calculators are reviewed and updated as formulas, assumptions, rates, or regulations change. Update timing can vary by topic, especially for pages tied to tax rules or other time-sensitive data.

Looking for a specific calculator?

Browse all 638 calculators