PressurePsi to Mmhg

Pounds per Square Inch to Millimeters of Mercury

Methodology·How We Verify

Snapshot

1 Pounds per Square Inch equals 51.714925 Millimeters of Mercury.

Reference basis: This conversion uses exact pascal-based pressure definitions.
Example: For 0.1 Pounds per Square Inch, the result equals 5.171493 Millimeters of Mercury.

Interactive conversion

Converter Calculator

Decimals: 1.5 or 1,5. Fractions: 1/2. Scientific notation: 1e3. Write 1000 without grouping separators.

51.714925 Millimeters of Mercury (mmHg)

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API and AI agent access

Pounds per Square Inch to Millimeters of Mercury.

Machine-readable identifiers

Conversion family: pressure
Source unit: psi
Target unit: mmhg

Use these identifiers in the API request. Sources and model limits also apply to software clients.

Example API request and response

POST /api/v1/convert

Request

{
  "family": "pressure",
  "value": 1,
  "from": "psi",
  "to": "mmhg"
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "pressure",
    "value": 1,
    "from": "psi",
    "to": "mmhg",
    "result": {
      "raw": 51.714925203869214,
      "display": "51.714925"
    },
    "canonicalPath": "/pressure/psi-to-mmhg/"
  }
}

API, OpenAPI and WebMCP documentation

Explanation

Convert psi to Pa with 6894.757293168, then divide by 133.322387415 Pa per mmHg.

Method & Reference

Method basis: exact conversion formula shown in Snapshot.
Applied factor: 1 Pounds per Square Inch = 51.714925 Millimeters of Mercury (using exact pascal-based pressure definitions).
Consistency rule: calculator output and table values use the same constants and rounding policy.

Common Conversion Values

Pounds per Square Inch (psi)	Millimeters of Mercury (mmHg)
0.1	5.171493
1/2	25.857463
1	51.714925
5	258.574626
10	517.149252
14.7	760.2094
29.92	1,547.310562
100	5,171.49252
101.325	5,240.014796
1000	51,714.925204

Questions & answers

Frequently Asked Questions

What is 1 pounds per square inch in millimeters of mercury?

1 Pounds per Square Inch equals 51.714925 Millimeters of Mercury on this page.

When would I convert pounds per square inch to millimeters of mercury?

This route is useful when translating pressure readings between psi and mmHg in mechanical, vacuum, laboratory, and instrumentation contexts.

How do I reverse Pounds per Square Inch to Millimeters of Mercury?

Use the mirror Millimeters of Mercury to Pounds per Square Inch route; it applies the inverse relationship with the same pressure assumptions.