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For general feedback, new unit requests, formula inquiries, or privacy and legal questions.
Review & Response Window
1–3 Business Days
We review calculation discrepancy reports with top priority and aim to respond to all inquiries within a few business days.
What to Include When Reporting a Calculation or Unit Issue
To help us reproduce and verify your question quickly, please include the following details if applicable:
- 1. Converter Page or Unit PairThe page URL (e.g.,
/convert/liters-to-gallons) or the exact source and target units selected. - 2. Input Value & Observed ResultThe number you entered, the output shown on screen, and the result you expected.
- 3. Regional or Domain StandardIf requesting a new unit, let us know the standard symbol and reference definition (such as NIST or ISO).
- 4. Device & Browser (For UI Bugs)Your browser name (e.g., Chrome, Safari, Firefox) and whether you are on mobile or desktop.
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