Contact Us

Questions, feedback, corrections, or a calculator request? We would love to hear from you.

Email us

Prefer email? Reach us directly at:

[email protected]

What to send

  • • Calculation correction
  • • Workbook issue
  • • Broken link
  • • Feature suggestion
  • • General feedback

Direct addresses

Calculator Matters is a formula-backed calculation and workbook platform built for clear, practical decisions — see About. We aim to reply within a few business days, though we cannot promise a specific response time. We do not provide personalised financial, tax, legal, or medical advice through support. Please do not send spam, bulk, or abusive messages.

Or email us directly at [email protected].
We use your message only to respond to you. We never sell or share it, and we do not add you to a mailing list. See our Privacy Policy.

Before you write

How do I report a wrong result or formula?

Email [email protected] or use the form below with the calculator name, the inputs you entered, and the result you expected. See the Corrections Policy for how we review and re-verify fixes.

How quickly will you reply?

We aim to acknowledge messages within a few business days and prioritise accuracy reports. As an independently run site we cannot promise a guaranteed response time.

Do you give personalised financial, tax, or legal advice?

No. Calculator Matters is an educational tool. We can clarify how a calculator works, but we cannot advise on your specific financial, tax, legal, or medical situation — please consult a qualified professional.

For a calculator error, the fastest route is our Corrections Policy. To learn who runs the site and how it is funded, see About.