Editorial Policy
Accuracy first
Conversion factors come from primary metrology sources (NIST, BIPM, ISO and ASTM documents). We do not copy factors from other converter websites. Every factor is linked to its source on the pages that use it.
Written for the field
Each indexed conversion page has worked examples, table ranges and usage notes chosen for the field where that conversion is used, for example filter pressure drops in pascals or ventilation rates in L/s. Conversions with little practical use are kept available for completeness but are marked noindex so that search engines see only pages with useful, specific content.
Review and corrections
- Every page shows the date it was last reviewed.
- Reported errors are checked against the primary source. Confirmed corrections are published and recorded in the changelog with the date and what changed.
- Factor changes must pass the automated test suite described in the methodology before release.
Advertising and independence
The site is funded by display advertising. Advertisers have no influence over content, and ads are never placed inside a converter or between an input and its result.
Use of automation
Software is used to generate tables, compute every number and check pages for consistency. Explanatory text may be drafted with the help of software (including AI writing tools) and is checked against the primary sources before publication.
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