PressureMmhg to Psi

Millimeters of Mercury to Pounds per Square Inch

Methodology·How We Verify

Snapshot

1 Millimeters of Mercury equals 0.019337 Pounds per Square Inch.

Reference basis: This conversion uses exact pascal-based pressure definitions.
Example: For 0.1 Millimeters of Mercury, the result equals 0.001934 Pounds per Square Inch.

Interactive conversion

Converter Calculator

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

0.019337 Pounds per Square Inch (psi)

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API and AI agent access

Millimeters of Mercury to Pounds per Square Inch.

Machine-readable identifiers

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

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": "mmhg",
  "to": "psi"
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "pressure",
    "value": 1,
    "from": "mmhg",
    "to": "psi",
    "result": {
      "raw": 0.01933677745946313,
      "display": "0.019337"
    },
    "canonicalPath": "/pressure/mmhg-to-psi/"
  }
}

API, OpenAPI and WebMCP documentation

Explanation

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

Method & Reference

Method basis: exact conversion formula shown in Snapshot.
Applied factor: 1 Millimeters of Mercury = 0.019337 Pounds per Square Inch (using exact pascal-based pressure definitions).
Consistency rule: calculator output and table values use the same constants and rounding policy.

Common Conversion Values

Millimeters of Mercury (mmHg)	Pounds per Square Inch (psi)
0.1	0.001934
1/2	0.009668
1	0.019337
5	0.096684
10	0.193368
14.7	0.284251
29.92	0.578556
100	1.933678
101.325	1.959299
1000	19.336777

Questions & answers

Frequently Asked Questions

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

1 Millimeters of Mercury equals 0.019337 Pounds per Square Inch on this page.

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

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

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

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