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Millimeters of mercury to Kilopascals (mmHg to kPa)
Convert millimeters of mercury to kilopascals: 1 mmHg = 0.133322 kPa. Exact conversion factor, formula, 22-row table and worked examples, with JSON API and MCP access.
Formula
1 mmHg = 0.133322 kPa
kilopascals = millimeters of mercury × 0.1333223874 — reverse: millimeters of mercury = kilopascals × 7.500615758
The factor is derived from the SI definitions of both units (base unit: Pa) as listed in NIST SP 811; results on this page are shown to 6 significant figures, the API returns up to 12.
Worked examples
- 5 mmHg = 0.666612 kPa
- 12.5 mmHg = 1.66653 kPa
- 100 mmHg = 13.3322 kPa
Millimeters of mercury to kilopascals conversion table
| Millimeters of mercury (mmHg) | Kilopascals (kPa) |
|---|---|
| 1 | 0.133322 |
| 2 | 0.266645 |
| 3 | 0.399967 |
| 4 | 0.53329 |
| 5 | 0.666612 |
| 6 | 0.799934 |
| 7 | 0.933257 |
| 8 | 1.06658 |
| 9 | 1.1999 |
| 10 | 1.33322 |
| 15 | 1.99984 |
| 20 | 2.66645 |
| 25 | 3.33306 |
| 30 | 3.99967 |
| 40 | 5.3329 |
| 50 | 6.66612 |
| 75 | 9.99918 |
| 100 | 13.3322 |
| 200 | 26.6645 |
| 250 | 33.3306 |
| 500 | 66.6612 |
| 1000 | 133.322 |
FAQ
How many kilopascals are in one millimeter of mercury?
1 mmHg = 0.133322 kPa. The factor comes from the SI definitions of both units (NIST SP 811 / BIPM), so it is exact or correct to at least 10 significant figures.
What is the formula to convert millimeters of mercury to kilopascals?
Multiply the value in millimeters of mercury by 0.1333223874: kilopascals = millimeters of mercury × 0.1333223874. For example, 5 mmHg = 0.666612 kPa.
How do I convert kilopascals back to millimeters of mercury?
Multiply by the inverse factor 7.500615758 (millimeters of mercury = kilopascals × 7.500615758), or use the kilopascals-to-millimeters of mercury page.
Related conversions
Machine access
- API:
GET https://tttkmbb.com/api/v1/convert?value=5&from_unit=mmHg&to_unit=kPa - MCP: server
https://tttkmbb.com/mcp, toolconvert_unitswith{"value":5,"from_unit":"mmHg","to_unit":"kPa"} - Markdown: https://tttkmbb.com/conversion/mmhg-to-kpa.md · JSON: https://tttkmbb.com/conversion/mmhg-to-kpa.json (add
?value=for a result) · Units: /api/v1/units?quantity=pressure - OpenAPI operationId:
convert_units. Freshness:static. Authentication: none.