Get in touch

Contact us

Spotted a result that looks off, want a tool we haven’t built yet, or have a question about a calculation? Send it over — every message is read and reviewed by the person who builds and checks these tools.

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Other ways to reach us

Response time
This is a small, independent site — we usually reply within a few days.
Reporting an error?
Include the tool name and the exact inputs you used — it lets us reproduce and fix it fast.

A few quick notes

  • Corrections get priority. Accuracy is the whole point of this site, so if a tool returns something that looks wrong, that message goes to the top of the pile. Tell us the tool and the exact values and we’ll check it against the method shown on the page.
  • Tool suggestions are welcome. A lot of what’s on the site started as someone asking “is there a tool for…”. If we’re missing a time calculation you need, tell us.
  • We can’t give payroll, legal, or scheduling advice. The tools are planning and verification aids — for how they apply to your specific pay, contract, or roster, check with the relevant professional or your own system.
  • Privacy. We use your email only to reply to you. See the privacy policy for the full picture, and the about page for who’s behind the site.