{
  "entity_type": "unit_conversion_page",
  "id": "tons-to-kg",
  "name": "US short tons to Kilograms",
  "title": "US short tons to Kilograms Converter (short ton to kg)",
  "description": "Convert US short tons to kilograms: 1 short ton = 907.185 kg. Exact conversion factor, formula, 22-row table and worked examples, with JSON API and MCP access.",
  "quantity": "mass",
  "quantity_name": "Mass",
  "base_unit": "kg",
  "from_unit": {
    "symbol": "ton_us",
    "display": "short ton",
    "name": "US short tons",
    "singular": "short ton"
  },
  "to_unit": {
    "symbol": "kg",
    "display": "kg",
    "name": "kilograms",
    "singular": "kilogram"
  },
  "linear": true,
  "factor": 907.18474,
  "inverse_factor": 0.001102311311,
  "formula": "kilograms = US short tons × 907.18474",
  "reverse_formula": "US short tons = kilograms × 0.001102311311",
  "unit_relation": "1 short ton = 907.185 kg",
  "examples": [
    {
      "value": 5,
      "result": 4535.92,
      "text": "5 short ton = 4535.92 kg"
    },
    {
      "value": 12.5,
      "result": 11339.8,
      "text": "12.5 short ton = 11339.8 kg"
    },
    {
      "value": 100,
      "result": 90718.5,
      "text": "100 short ton = 90718.5 kg"
    }
  ],
  "table": [
    {
      "ton_us": 1,
      "kg": 907.185
    },
    {
      "ton_us": 2,
      "kg": 1814.37
    },
    {
      "ton_us": 3,
      "kg": 2721.55
    },
    {
      "ton_us": 4,
      "kg": 3628.74
    },
    {
      "ton_us": 5,
      "kg": 4535.92
    },
    {
      "ton_us": 6,
      "kg": 5443.11
    },
    {
      "ton_us": 7,
      "kg": 6350.29
    },
    {
      "ton_us": 8,
      "kg": 7257.48
    },
    {
      "ton_us": 9,
      "kg": 8164.66
    },
    {
      "ton_us": 10,
      "kg": 9071.85
    },
    {
      "ton_us": 15,
      "kg": 13607.8
    },
    {
      "ton_us": 20,
      "kg": 18143.7
    },
    {
      "ton_us": 25,
      "kg": 22679.6
    },
    {
      "ton_us": 30,
      "kg": 27215.5
    },
    {
      "ton_us": 40,
      "kg": 36287.4
    },
    {
      "ton_us": 50,
      "kg": 45359.2
    },
    {
      "ton_us": 75,
      "kg": 68038.9
    },
    {
      "ton_us": 100,
      "kg": 90718.5
    },
    {
      "ton_us": 200,
      "kg": 181437
    },
    {
      "ton_us": 250,
      "kg": 226796
    },
    {
      "ton_us": 500,
      "kg": 453592
    },
    {
      "ton_us": 1000,
      "kg": 907185
    }
  ],
  "faq": [
    {
      "q": "How many kilograms are in one short ton?",
      "a": "1 short ton = 907.185 kg. 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 US short tons to kilograms?",
      "a": "Multiply the value in US short tons by 907.18474: kilograms = US short tons × 907.18474. For example, 5 short ton = 4535.92 kg."
    },
    {
      "q": "How do I convert kilograms back to US short tons?",
      "a": "Multiply by the inverse factor 0.001102311311 (US short tons = kilograms × 0.001102311311), or use the kilograms-to-US short tons 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=ton_us&to_unit=kg",
    "calculator": "https://tttkmbb.com/api/v1/calculate/mass?value=5&from_unit=ton_us&to_unit=kg",
    "mcp_tool": "convert_units",
    "mcp_arguments": {
      "value": 5,
      "from_unit": "ton_us",
      "to_unit": "kg"
    }
  },
  "links": {
    "html": "https://tttkmbb.com/conversion/tons-to-kg",
    "markdown": "https://tttkmbb.com/conversion/tons-to-kg.md",
    "json": "https://tttkmbb.com/conversion/tons-to-kg.json",
    "reverse": "https://tttkmbb.com/conversion/kg-to-tons",
    "quantity_converter": "https://tttkmbb.com/conversion/mass",
    "units": "https://tttkmbb.com/api/v1/units?quantity=mass"
  },
  "timestamp": "2026-09-24"
}