Disclaimer

1. No warranty of accuracy

While we verify conversion factors against authoritative sources (BIPM, NIST, IHO, IAU, and others), we make no warranty of absolute accuracy or completeness. Numerical computations on this Site involve floating-point arithmetic which can introduce small rounding errors at the limits of double-precision representation. Displayed values are rounded for readability.

If you require certified-accurate conversion factors for legal, regulatory, or safety-critical applications, refer directly to the cited primary sources.

2. Not professional advice

ExpertCalculator content is informational only. Specifically:

• Medical: Do not use this Site to compute drug dosages or other clinical measurements without independent verification by a qualified healthcare professional.
• Engineering / Safety: Do not use this Site as the sole authority for engineering calculations affecting human safety, structural integrity, or regulatory compliance.
• Legal: Information on units used in legal documents (deeds, charters, contracts) is general educational reference; consult a qualified attorney for actual legal matters.
• Financial: Currency, commodity, and financial-ratio information (when our Finance category launches) is for reference only and does not constitute investment advice.

3. Historical and regional units

Many length units in our Historical, Regional, and Ancient categories had values that varied across times and places, even within a single culture. Where this Site provides a value for a historical unit, it is a generally accepted modern reference value, not a guarantee that any specific historical document used exactly that value. Pages for historical units are marked with an "approximate value" notice.

4. External links

ExpertCalculator links to external websites (BIPM, NIST, government agencies, scientific bodies, encyclopaedias). We do not control these sites and are not responsible for their content or practices. External links are provided for verification and further reading, not as endorsement.

5. Advertising

The Site displays advertisements via Google AdSense. Ad content is determined by Google's algorithms and individual advertisers; ExpertCalculator does not endorse any advertised product or service. Clicking an advertisement takes you to a third-party site governed by that party's terms.

6. Limitation of liability

To the extent permitted by law, ExpertCalculator, its operators, contributors, and reviewers shall not be liable for any loss or damage (whether direct, indirect, consequential, or otherwise) arising from your reliance on information presented on this Site. See our Terms of Use for the complete liability framework.

7. Verification responsibility

You are responsible for verifying any conversion against an authoritative source before applying it in any consequential situation. The Site's per-page "Sources & references" section cites five authoritative sources for every conversion, precisely to enable this verification.