PressurePsi to Bar

Pounds per Square Inch to Bar

Methodology·How We Verify

Snapshot

1 Pounds per Square Inch equals 0.068948 Bar.

Reference basis: This conversion uses exact pascal-based pressure definitions.
Example: For 5 Pounds per Square Inch, the result equals 0.344738 Bar.

Interactive conversion

Converter Calculator

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

0.068948 Bar (bar)

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API and AI agent access

Pounds per Square Inch to Bar.

Machine-readable identifiers

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

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": "bar"
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "pressure",
    "value": 1,
    "from": "psi",
    "to": "bar",
    "result": {
      "raw": 0.06894757293168,
      "display": "0.068948"
    },
    "canonicalPath": "/pressure/psi-to-bar/"
  }
}

API, OpenAPI and WebMCP documentation

Explanation

This page answers psi to bar using the exact fixed relationship 1 psi = 0.068947572932 bar. It is useful for pressure-gauge comparisons, workshop tools, air systems, and equipment specs where psi values need to be checked against bar-based markings.

Formula: bar = psi × 0.06894757293168. Because this route stays on one pascal-based pressure model, the calculator, common values, and reverse page all use the same exact factor.

Method & Reference

Method basis: exact conversion formula shown in Snapshot.
Applied factor: 1 Pounds per Square Inch = 0.068948 Bar (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)	Bar (bar)
1	0.068948
5	0.344738
10	0.689476
14.7	1.013529
15	1.034214
30	2.068427
32	2.206322
35	2.413165
100	6.894757
200	13.789515
300	20.684272

Questions & answers

Frequently Asked Questions

What is 1 pounds per square inch in bar?

1 Pounds per Square Inch equals 0.068948 Bar on this page.

When would I convert pounds per square inch to bar?

This route is useful when translating pressure values across SI, metric engineering, and imperial conventions so datasheets, gauges, and calculations stay comparable.

How do I reverse Pounds per Square Inch to Bar?

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