Convert a pressure reading
Enter the signed value exactly as reported. Unit conversion does not select a safe test pressure.
Calculated in this browser. The entered reading is not collected. Results are rounded to six significant digits.
Convert units without inventing a specification
The factors below follow NIST SP 811. The inches-of-water and inches-of-mercury units use the conventional definitions. This changes units only; it does not change a gauge reading into an absolute reading, reverse a vacuum sign convention, or turn a pressure into an FTP sensor voltage.
| Unit | Pascals per unit |
|---|---|
| Pa | 1 |
| kPa | 1,000 |
| psi | 6,894.757 |
| inH₂O (conventional) | 249.0889 |
| inHg (conventional) | 3,386.389 |
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Keep the reference and sign with the reading
The converter preserves the sign you enter. Keep the instrument’s gauge, absolute or differential reference and its vacuum convention with the result. Converting between pressure references requires additional information; this tool does not do that.
There is no verified vehicle voltage table on this page. Use the sensor’s application-specific calibration to interpret its voltage.
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Sources, review and limits
Prepared by GoTech with AI assistance. Source wording and the bounded educational interpretation were checked in two reasoning passes by the same assistant. Technician review is pending; vehicle-specific service information and visual details have not been independently verified. Original source files remain unchanged.
- Convert units without inventing a specification
- Dimensional conversion only. No allowable test pressure, vehicle pass/fail limit or sensor calibration is supplied. NIST SP 811 · conversion factors
About older links to this guide
This guide has been rewritten around the available source evidence. An older section link may land here; use “In this guide” above to find the revised explanation. Original source files are retained in GoTech’s review history.