{
  "entity_type": "unit_conversion_page",
  "id": "kwh-to-kj",
  "name": "Kilowatt-hours to Kilojoules",
  "title": "Kilowatt-hours to Kilojoules Converter (kWh to kJ)",
  "description": "Convert kilowatt-hours to kilojoules: 1 kWh = 3600 kJ. Exact conversion factor, formula, 22-row table and worked examples, with JSON API and MCP access.",
  "quantity": "energy",
  "quantity_name": "Energy",
  "base_unit": "J",
  "from_unit": {
    "symbol": "kWh",
    "display": "kWh",
    "name": "kilowatt-hours",
    "singular": "kilowatt-hour"
  },
  "to_unit": {
    "symbol": "kJ",
    "display": "kJ",
    "name": "kilojoules",
    "singular": "kilojoule"
  },
  "linear": true,
  "factor": 3600,
  "inverse_factor": 0.0002777777778,
  "formula": "kilojoules = kilowatt-hours × 3600",
  "reverse_formula": "kilowatt-hours = kilojoules × 0.0002777777778",
  "unit_relation": "1 kWh = 3600 kJ",
  "examples": [
    {
      "value": 5,
      "result": 18000,
      "text": "5 kWh = 18000 kJ"
    },
    {
      "value": 12.5,
      "result": 45000,
      "text": "12.5 kWh = 45000 kJ"
    },
    {
      "value": 100,
      "result": 360000,
      "text": "100 kWh = 360000 kJ"
    }
  ],
  "table": [
    {
      "kWh": 1,
      "kJ": 3600
    },
    {
      "kWh": 2,
      "kJ": 7200
    },
    {
      "kWh": 3,
      "kJ": 10800
    },
    {
      "kWh": 4,
      "kJ": 14400
    },
    {
      "kWh": 5,
      "kJ": 18000
    },
    {
      "kWh": 6,
      "kJ": 21600
    },
    {
      "kWh": 7,
      "kJ": 25200
    },
    {
      "kWh": 8,
      "kJ": 28800
    },
    {
      "kWh": 9,
      "kJ": 32400
    },
    {
      "kWh": 10,
      "kJ": 36000
    },
    {
      "kWh": 15,
      "kJ": 54000
    },
    {
      "kWh": 20,
      "kJ": 72000
    },
    {
      "kWh": 25,
      "kJ": 90000
    },
    {
      "kWh": 30,
      "kJ": 108000
    },
    {
      "kWh": 40,
      "kJ": 144000
    },
    {
      "kWh": 50,
      "kJ": 180000
    },
    {
      "kWh": 75,
      "kJ": 270000
    },
    {
      "kWh": 100,
      "kJ": 360000
    },
    {
      "kWh": 200,
      "kJ": 720000
    },
    {
      "kWh": 250,
      "kJ": 900000
    },
    {
      "kWh": 500,
      "kJ": 1800000
    },
    {
      "kWh": 1000,
      "kJ": 3600000
    }
  ],
  "faq": [
    {
      "q": "How many kilojoules are in one kilowatt-hour?",
      "a": "1 kWh = 3600 kJ. 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 kilowatt-hours to kilojoules?",
      "a": "Multiply the value in kilowatt-hours by 3600: kilojoules = kilowatt-hours × 3600. For example, 5 kWh = 18000 kJ."
    },
    {
      "q": "How do I convert kilojoules back to kilowatt-hours?",
      "a": "Multiply by the inverse factor 0.0002777777778 (kilowatt-hours = kilojoules × 0.0002777777778), or use the kilojoules-to-kilowatt-hours 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=kWh&to_unit=kJ",
    "calculator": "https://tttkmbb.com/api/v1/calculate/energy?value=5&from_unit=kWh&to_unit=kJ",
    "mcp_tool": "convert_units",
    "mcp_arguments": {
      "value": 5,
      "from_unit": "kWh",
      "to_unit": "kJ"
    }
  },
  "links": {
    "html": "https://tttkmbb.com/conversion/kwh-to-kj",
    "markdown": "https://tttkmbb.com/conversion/kwh-to-kj.md",
    "json": "https://tttkmbb.com/conversion/kwh-to-kj.json",
    "reverse": "https://tttkmbb.com/conversion/kj-to-kwh",
    "quantity_converter": "https://tttkmbb.com/conversion/energy",
    "units": "https://tttkmbb.com/api/v1/units?quantity=energy"
  },
  "timestamp": "2026-09-24"
}