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Contact Us

We read every email and respond within 2–3 business days.

General Questions

Questions about our calculators, content, or site features

[email protected]

Corrections

Report factual errors, outdated information, or calculator inaccuracies

[email protected]

Privacy / Data

Privacy questions, COPPA inquiries, data deletion requests

[email protected]

DMCA / Copyright

Copyright claims, takedown requests, content licensing

[email protected]

Before You Write

Check if your question is already answered:

What to Include in a Corrections Email

If you're reporting a factual error, please include:

  1. The URL of the page with the error
  2. A quote of the specific text or calculation that appears to be wrong
  3. What you believe the correct information is, and a source if available

We verify all corrections before applying them and will respond to let you know what we found.

Response Time

We aim to respond to all emails within 2–3 business days (Monday–Friday, excluding U.S. federal holidays).

Urgent matters (calculator errors, privacy concerns) are prioritized and typically addressed within 24 hours.