mmHg to Pascals Converter

Summary

This converter turns any millimeter of mercury (mmHg) value into pascals (Pa) in real time. One mmHg equals exactly 133.322387415 Pa, derived from the density of mercury and standard gravity as defined by ISO 80000-4. Results are also shown in kilopascals (kPa), bar, and psi. All computation runs client-side with no server round-trip. A reverse field converts Pa back to mmHg, and a reference table covers common clinical and industrial pressures.

How it works

1. Enter the pressure value in mmHg in the top input field.
2. The converter multiplies your value by 133.322387415 to get pascals.
3. Results update instantly as you type — no button needed.
4. Kilopascal, bar, and psi equivalents appear below the Pa result.
5. Use the reverse field to convert pascals back to mmHg.
6. Click "Copy" next to any result to copy it to the clipboard.

Use cases

• Convert blood pressure readings from mmHg to Pa for biomedical research.
• Translate barometric pressure data from mmHg to SI units for meteorology reports.
• Express vacuum gauge pressures in pascals for laboratory specifications.
• Convert manometer readings in mmHg to Pa for fluid dynamics calculations.
• Cross-check industrial pressure specs that mix mmHg and Pa units.
• Verify medical device pressure ratings in SI pascal units.
• Convert partial-pressure values in mmHg to Pa for gas mixture calculations.

Frequently Asked Questions