{
  "entity_type": "unit_conversion_page",
  "id": "nautical-miles-to-km",
  "name": "Nautical miles to Kilometers",
  "title": "Nautical miles to Kilometers Converter (nmi to km)",
  "description": "Convert nautical miles to kilometers: 1 nmi = 1.852 km. Exact conversion factor, formula, 22-row table and worked examples, with JSON API and MCP access.",
  "quantity": "length",
  "quantity_name": "Length",
  "base_unit": "m",
  "from_unit": {
    "symbol": "nmi",
    "display": "nmi",
    "name": "nautical miles",
    "singular": "nautical mile"
  },
  "to_unit": {
    "symbol": "km",
    "display": "km",
    "name": "kilometers",
    "singular": "kilometer"
  },
  "linear": true,
  "factor": 1.852,
  "inverse_factor": 0.5399568035,
  "formula": "kilometers = nautical miles × 1.852",
  "reverse_formula": "nautical miles = kilometers × 0.5399568035",
  "unit_relation": "1 nmi = 1.852 km",
  "examples": [
    {
      "value": 5,
      "result": 9.26,
      "text": "5 nmi = 9.26 km"
    },
    {
      "value": 12.5,
      "result": 23.15,
      "text": "12.5 nmi = 23.15 km"
    },
    {
      "value": 100,
      "result": 185.2,
      "text": "100 nmi = 185.2 km"
    }
  ],
  "table": [
    {
      "nmi": 1,
      "km": 1.852
    },
    {
      "nmi": 2,
      "km": 3.704
    },
    {
      "nmi": 3,
      "km": 5.556
    },
    {
      "nmi": 4,
      "km": 7.408
    },
    {
      "nmi": 5,
      "km": 9.26
    },
    {
      "nmi": 6,
      "km": 11.112
    },
    {
      "nmi": 7,
      "km": 12.964
    },
    {
      "nmi": 8,
      "km": 14.816
    },
    {
      "nmi": 9,
      "km": 16.668
    },
    {
      "nmi": 10,
      "km": 18.52
    },
    {
      "nmi": 15,
      "km": 27.78
    },
    {
      "nmi": 20,
      "km": 37.04
    },
    {
      "nmi": 25,
      "km": 46.3
    },
    {
      "nmi": 30,
      "km": 55.56
    },
    {
      "nmi": 40,
      "km": 74.08
    },
    {
      "nmi": 50,
      "km": 92.6
    },
    {
      "nmi": 75,
      "km": 138.9
    },
    {
      "nmi": 100,
      "km": 185.2
    },
    {
      "nmi": 200,
      "km": 370.4
    },
    {
      "nmi": 250,
      "km": 463
    },
    {
      "nmi": 500,
      "km": 926
    },
    {
      "nmi": 1000,
      "km": 1852
    }
  ],
  "faq": [
    {
      "q": "How many kilometers are in one nautical mile?",
      "a": "1 nmi = 1.852 km. 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 nautical miles to kilometers?",
      "a": "Multiply the value in nautical miles by 1.852: kilometers = nautical miles × 1.852. For example, 5 nmi = 9.26 km."
    },
    {
      "q": "How do I convert kilometers back to nautical miles?",
      "a": "Multiply by the inverse factor 0.5399568035 (nautical miles = kilometers × 0.5399568035), or use the kilometers-to-nautical miles 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=nmi&to_unit=km",
    "calculator": "https://tttkmbb.com/api/v1/calculate/length?value=5&from_unit=nmi&to_unit=km",
    "mcp_tool": "convert_units",
    "mcp_arguments": {
      "value": 5,
      "from_unit": "nmi",
      "to_unit": "km"
    }
  },
  "links": {
    "html": "https://tttkmbb.com/conversion/nautical-miles-to-km",
    "markdown": "https://tttkmbb.com/conversion/nautical-miles-to-km.md",
    "json": "https://tttkmbb.com/conversion/nautical-miles-to-km.json",
    "reverse": "https://tttkmbb.com/conversion/km-to-nautical-miles",
    "quantity_converter": "https://tttkmbb.com/conversion/length",
    "units": "https://tttkmbb.com/api/v1/units?quantity=length"
  },
  "timestamp": "2026-09-24"
}