{
  "entity_type": "unit_conversion_page",
  "id": "pa-to-psi",
  "name": "Pascals to Psi",
  "title": "Pascals to Psi Converter (Pa to psi)",
  "description": "Convert pascals to psi: 1 Pa = 0.000145038 psi. Exact conversion factor, formula, 22-row table and worked examples, with JSON API and MCP access.",
  "quantity": "pressure",
  "quantity_name": "Pressure",
  "base_unit": "Pa",
  "from_unit": {
    "symbol": "Pa",
    "display": "Pa",
    "name": "pascals",
    "singular": "pascal"
  },
  "to_unit": {
    "symbol": "psi",
    "display": "psi",
    "name": "psi",
    "singular": "psi"
  },
  "linear": true,
  "factor": 0.0001450377377,
  "inverse_factor": 6894.757293,
  "formula": "psi = pascals × 0.0001450377377",
  "reverse_formula": "pascals = psi × 6894.757293",
  "unit_relation": "1 Pa = 0.000145038 psi",
  "examples": [
    {
      "value": 5,
      "result": 0.000725189,
      "text": "5 Pa = 0.000725189 psi"
    },
    {
      "value": 12.5,
      "result": 0.00181297,
      "text": "12.5 Pa = 0.00181297 psi"
    },
    {
      "value": 100,
      "result": 0.0145038,
      "text": "100 Pa = 0.0145038 psi"
    }
  ],
  "table": [
    {
      "Pa": 1,
      "psi": 0.000145038
    },
    {
      "Pa": 2,
      "psi": 0.000290075
    },
    {
      "Pa": 3,
      "psi": 0.000435113
    },
    {
      "Pa": 4,
      "psi": 0.000580151
    },
    {
      "Pa": 5,
      "psi": 0.000725189
    },
    {
      "Pa": 6,
      "psi": 0.000870226
    },
    {
      "Pa": 7,
      "psi": 0.00101526
    },
    {
      "Pa": 8,
      "psi": 0.0011603
    },
    {
      "Pa": 9,
      "psi": 0.00130534
    },
    {
      "Pa": 10,
      "psi": 0.00145038
    },
    {
      "Pa": 15,
      "psi": 0.00217557
    },
    {
      "Pa": 20,
      "psi": 0.00290075
    },
    {
      "Pa": 25,
      "psi": 0.00362594
    },
    {
      "Pa": 30,
      "psi": 0.00435113
    },
    {
      "Pa": 40,
      "psi": 0.00580151
    },
    {
      "Pa": 50,
      "psi": 0.00725189
    },
    {
      "Pa": 75,
      "psi": 0.0108778
    },
    {
      "Pa": 100,
      "psi": 0.0145038
    },
    {
      "Pa": 200,
      "psi": 0.0290075
    },
    {
      "Pa": 250,
      "psi": 0.0362594
    },
    {
      "Pa": 500,
      "psi": 0.0725189
    },
    {
      "Pa": 1000,
      "psi": 0.145038
    }
  ],
  "faq": [
    {
      "q": "How many psi are in one pascal?",
      "a": "1 Pa = 0.000145038 psi. 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."
    },
    {
      "q": "What is the formula to convert pascals to psi?",
      "a": "Multiply the value in pascals by 0.0001450377377: psi = pascals × 0.0001450377377. For example, 5 Pa = 0.000725189 psi."
    },
    {
      "q": "How do I convert psi back to pascals?",
      "a": "Multiply by the inverse factor 6894.757293 (pascals = psi × 6894.757293), or use the psi-to-pascals page."
    }
  ],
  "sources": [
    {
      "name": "NIST Special Publication 811 – Guide for the Use of the International System of Units (SI), Appendix B conversion factors",
      "url": "https://www.nist.gov/pml/special-publication-811",
      "type": "standard",
      "retrieved_at": "2026-09-24"
    },
    {
      "name": "BIPM – The International System of Units (SI Brochure, 9th edition)",
      "url": "https://www.bipm.org/en/publications/si-brochure",
      "type": "standard",
      "retrieved_at": "2026-09-24"
    },
    {
      "name": "Wikipedia – Conversion of units",
      "url": "https://en.wikipedia.org/wiki/Conversion_of_units",
      "type": "reference",
      "retrieved_at": "2026-09-24"
    }
  ],
  "freshness": {
    "type": "static",
    "max_age_seconds": null,
    "note": "Fixed conversion factors (NIST/BIPM definitions); results never go stale."
  },
  "api": {
    "convert": "https://tttkmbb.com/api/v1/convert?value=5&from_unit=Pa&to_unit=psi",
    "calculator": "https://tttkmbb.com/api/v1/calculate/pressure?value=5&from_unit=Pa&to_unit=psi",
    "mcp_tool": "convert_units",
    "mcp_arguments": {
      "value": 5,
      "from_unit": "Pa",
      "to_unit": "psi"
    }
  },
  "links": {
    "html": "https://tttkmbb.com/conversion/pa-to-psi",
    "markdown": "https://tttkmbb.com/conversion/pa-to-psi.md",
    "json": "https://tttkmbb.com/conversion/pa-to-psi.json",
    "reverse": "https://tttkmbb.com/conversion/psi-to-pa",
    "quantity_converter": "https://tttkmbb.com/conversion/pressure",
    "units": "https://tttkmbb.com/api/v1/units?quantity=pressure"
  },
  "timestamp": "2026-09-24"
}