PressureAtm to Pascals

Atmospheres to Pascals

Snapshot

1 Atmospheres equals 101,325 Pascals. Conversion Encyclopedia uses the same fixed conversion basis across the calculator, common values, and reverse page for this page.

Reference basis: This conversion uses exact pascal-based pressure definitions.
Example: For 0.1 Atmospheres, the result equals 10,132.5 Pascals.
Use the reverse page if you need the opposite direction with the same basis.

Use the interactive calculator below for custom values and the common-value table for quick checks.

Interactive conversion

Converter Calculator

101,325 Pascals (Pa)

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Machine access

Available to apps and AI agents

Atmospheres to Pascals can be requested through Conversion Encyclopedia's structured interfaces by software and compatible AI agents. The identifiers below select the same calculation as the calculator.

Machine-readable identifiers

Conversion family: pressure
Source unit: atm
Target unit: pascals

The JSON API and OpenAPI specification use the identifiers to reach the conversion engine. WebMCP lets compatible AI agents request the same calculation.

Example API request and response

POST /api/v1/convert

Request

{
  "family": "pressure",
  "value": 1,
  "from": "atm",
  "to": "pascals"
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "pressure",
    "value": 1,
    "from": "atm",
    "to": "pascals",
    "result": {
      "raw": 101325,
      "display": "101,325"
    },
    "canonicalPath": "/pressure/atm-to-pascals/"
  }
}

Full API documentation

Explanation

Formula: Pascals = Atmospheres × 101,325. Why: both units are normalized through pascals, so the conversion follows one fixed pressure reference path with no offsets or profile-based assumptions.

Standard atmospheres (atm): a reference pressure unit fixed at exactly 101,325 pascals, often used for ambient and thermodynamic pressure contexts.

Pascals (Pa): the SI derived unit of pressure, equal to one newton of force applied over one square meter.

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

This conversion is purely multiplicative because both units reduce through pascals using fixed pressure constants with no offset.

Method & Reference

Method basis: exact conversion formula shown in Snapshot.
Applied factor: 1 Atmospheres = 101,325 Pascals (using exact pascal-based pressure definitions).
Consistency rule: calculator output and table values use the same constants and rounding policy.

Common Conversion Values

Atmospheres (atm)	Pascals (Pa)
0.1	10,132.5
0.5	50,662.5
1	101,325
5	506,625
10	1,013,250
14.7	1,489,477.5
29.92	3,031,644
100	10,132,500
101.325	10,266,755.625
1,000	101,325,000

Questions & answers

Frequently Asked Questions

What is 1 atmospheres in pascals?

1 Atmospheres equals 101,325 Pascals on this page.

What fixed pressure basis does this Atmospheres to Pascals page use?

This route normalizes both units through pascals, then applies the fixed target-unit pressure relationship so the direct answer, calculator, and common values table stay aligned.

When would I convert atmospheres to pascals?