{
  "id": "1-tons-to-kg",
  "version": "eb6fe818d4c5",
  "status": "published",
  "name": "1 ton to kg",
  "question": "What is 1 ton to kg?",
  "summary": "Converts tons to kilograms and back, for the US short ton, the metric ton, and the UK long ton.",
  "category": "convert",
  "subcategory": "weight",
  "url": "https://www.acalculator.org/convert/1-tons-to-kg",
  "markdown": "https://www.acalculator.org/convert/1-tons-to-kg.md",
  "kind": "formulas",
  "method": "kg = short tons × 907.18474 for US short tons; the factor depends on the ton",
  "assumptions": [
    "1 US short ton = 2,000 lb = 907.18474 kg; 1 metric ton (tonne) = 1,000 kg; 1 UK long ton = 2,240 lb = 1,016.0469088 kg, from the exact definitions in NIST SP 811.",
    "In the US, \"ton\" means the short ton. Most other countries mean the metric ton, which is also written \"tonne\" or \"t\".",
    "The answer shows at most 6 decimal places; the calculation keeps full precision."
  ],
  "inputs": {
    "$schema": "https://json-schema.org/draft/2020-12/schema",
    "type": "object",
    "properties": {
      "value": {
        "title": "Tons",
        "description": "The amount in short tons to convert.",
        "type": "number",
        "minimum": 0,
        "maximum": 1000000000000
      },
      "result": {
        "title": "Kilograms (kg)",
        "description": "The same amount in kilograms.",
        "type": "number",
        "minimum": 0,
        "maximum": 1016046908800000
      },
      "ton": {
        "title": "Which ton",
        "description": "The US short ton is 2,000 lb, the metric ton (tonne) is 1,000 kg, and the UK long ton is 2,240 lb.",
        "type": "string",
        "enum": [
          "short",
          "metric",
          "long"
        ]
      }
    }
  },
  "solve": {
    "fillAny": 1,
    "variables": [
      "value",
      "result"
    ],
    "inputsOnly": []
  },
  "outputs": {
    "value": {
      "label": "Tons",
      "description": "The amount in short tons to convert.",
      "format": "number"
    },
    "result": {
      "label": "Kilograms (kg)",
      "description": "The amount in kilograms.",
      "format": "number"
    }
  },
  "defaultAnswer": {
    "inputs": {
      "ton": "short",
      "value": 1
    },
    "outputs": {
      "result": 907.18474
    },
    "text": "1 ton = 907.18474 kg (US short ton, 2,000 lb)."
  },
  "examples": [
    {
      "given": {
        "value": 1,
        "ton": "short"
      },
      "expect": {
        "result": 907.18474
      },
      "source": "NIST SP 811 (2008), Appendix B.8: US short ton, 2,000 lb"
    },
    {
      "given": {
        "value": 1,
        "ton": "metric"
      },
      "expect": {
        "result": 1000
      },
      "source": "NIST SP 811 (2008), Appendix B.8: Metric ton or tonne, 1,000 kg"
    },
    {
      "given": {
        "value": 1,
        "ton": "long"
      },
      "expect": {
        "result": 1016.0469088
      },
      "source": "NIST SP 811 (2008), Appendix B.8: UK long ton, 2,240 lb"
    }
  ],
  "sources": [
    "NIST SP 811 (2008), Guide for the Use of the International System of Units, Appendix B.8. https://www.nist.gov/pml/special-publication-811"
  ],
  "related": [
    "tons-to-kg",
    "kg-to-tons"
  ],
  "changelog": []
}