{
  "entity_type": "unit_conversion_page",
  "id": "newton-meters-to-in-lbs",
  "name": "Newton-meters to Pound-inches (in-lb)",
  "title": "Newton-meters to Pound-inches (in-lb) Converter (N·m to lbf·in)",
  "description": "Convert newton-meters to pound-inches (in-lb): 1 N·m = 8.85075 lbf·in. Exact conversion factor, formula, 22-row table and worked examples, with JSON API and MCP access.",
  "quantity": "torque",
  "quantity_name": "Torque",
  "base_unit": "Nm",
  "from_unit": {
    "symbol": "Nm",
    "display": "N·m",
    "name": "newton-meters",
    "singular": "newton-meter"
  },
  "to_unit": {
    "symbol": "lbf_in",
    "display": "lbf·in",
    "name": "pound-inches (in-lb)",
    "singular": "pound-inch"
  },
  "linear": true,
  "factor": 8.850745791,
  "inverse_factor": 0.112984829,
  "formula": "pound-inches (in-lb) = newton-meters × 8.850745791",
  "reverse_formula": "newton-meters = pound-inches (in-lb) × 0.112984829",
  "unit_relation": "1 N·m = 8.85075 lbf·in",
  "examples": [
    {
      "value": 5,
      "result": 44.2537,
      "text": "5 N·m = 44.2537 lbf·in"
    },
    {
      "value": 12.5,
      "result": 110.634,
      "text": "12.5 N·m = 110.634 lbf·in"
    },
    {
      "value": 100,
      "result": 885.075,
      "text": "100 N·m = 885.075 lbf·in"
    }
  ],
  "table": [
    {
      "Nm": 1,
      "lbf_in": 8.85075
    },
    {
      "Nm": 2,
      "lbf_in": 17.7015
    },
    {
      "Nm": 3,
      "lbf_in": 26.5522
    },
    {
      "Nm": 4,
      "lbf_in": 35.403
    },
    {
      "Nm": 5,
      "lbf_in": 44.2537
    },
    {
      "Nm": 6,
      "lbf_in": 53.1045
    },
    {
      "Nm": 7,
      "lbf_in": 61.9552
    },
    {
      "Nm": 8,
      "lbf_in": 70.806
    },
    {
      "Nm": 9,
      "lbf_in": 79.6567
    },
    {
      "Nm": 10,
      "lbf_in": 88.5075
    },
    {
      "Nm": 15,
      "lbf_in": 132.761
    },
    {
      "Nm": 20,
      "lbf_in": 177.015
    },
    {
      "Nm": 25,
      "lbf_in": 221.269
    },
    {
      "Nm": 30,
      "lbf_in": 265.522
    },
    {
      "Nm": 40,
      "lbf_in": 354.03
    },
    {
      "Nm": 50,
      "lbf_in": 442.537
    },
    {
      "Nm": 75,
      "lbf_in": 663.806
    },
    {
      "Nm": 100,
      "lbf_in": 885.075
    },
    {
      "Nm": 200,
      "lbf_in": 1770.15
    },
    {
      "Nm": 250,
      "lbf_in": 2212.69
    },
    {
      "Nm": 500,
      "lbf_in": 4425.37
    },
    {
      "Nm": 1000,
      "lbf_in": 8850.75
    }
  ],
  "faq": [
    {
      "q": "How many pound-inches (in-lb) are in one newton-meter?",
      "a": "1 N·m = 8.85075 lbf·in. 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 newton-meters to pound-inches (in-lb)?",
      "a": "Multiply the value in newton-meters by 8.850745791: pound-inches (in-lb) = newton-meters × 8.850745791. For example, 5 N·m = 44.2537 lbf·in."
    },
    {
      "q": "How do I convert pound-inches (in-lb) back to newton-meters?",
      "a": "Multiply by the inverse factor 0.112984829 (newton-meters = pound-inches (in-lb) × 0.112984829), or use the pound-inches (in-lb)-to-newton-meters 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=Nm&to_unit=lbf_in",
    "calculator": "https://tttkmbb.com/api/v1/calculate/torque?value=5&from_unit=Nm&to_unit=lbf_in",
    "mcp_tool": "convert_units",
    "mcp_arguments": {
      "value": 5,
      "from_unit": "Nm",
      "to_unit": "lbf_in"
    }
  },
  "links": {
    "html": "https://tttkmbb.com/conversion/newton-meters-to-in-lbs",
    "markdown": "https://tttkmbb.com/conversion/newton-meters-to-in-lbs.md",
    "json": "https://tttkmbb.com/conversion/newton-meters-to-in-lbs.json",
    "reverse": "https://tttkmbb.com/conversion/in-lbs-to-newton-meters",
    "quantity_converter": "https://tttkmbb.com/conversion/torque",
    "units": "https://tttkmbb.com/api/v1/units?quantity=torque"
  },
  "timestamp": "2026-09-24"
}