{
  "entity_type": "unit_conversion_page",
  "id": "btu-per-hour-to-tons-of-refrigeration",
  "name": "BTU per hour to Tons of refrigeration",
  "title": "BTU per hour to Tons of refrigeration Converter (BTU/h to TR)",
  "description": "Convert BTU per hour to tons of refrigeration: 1 BTU/h = 0.0000833333 TR. Exact conversion factor, formula, 22-row table and worked examples, with JSON API and MCP access.",
  "quantity": "power",
  "quantity_name": "Power",
  "base_unit": "W",
  "from_unit": {
    "symbol": "BTU/h",
    "display": "BTU/h",
    "name": "BTU per hour",
    "singular": "BTU per hour"
  },
  "to_unit": {
    "symbol": "ton_refrigeration",
    "display": "TR",
    "name": "tons of refrigeration",
    "singular": "ton of refrigeration"
  },
  "linear": true,
  "factor": 0.00008333333333,
  "inverse_factor": 12000,
  "formula": "tons of refrigeration = BTU per hour × 0.00008333333333",
  "reverse_formula": "BTU per hour = tons of refrigeration × 12000",
  "unit_relation": "1 BTU/h = 0.0000833333 TR",
  "examples": [
    {
      "value": 5,
      "result": 0.000416667,
      "text": "5 BTU/h = 0.000416667 TR"
    },
    {
      "value": 12.5,
      "result": 0.00104167,
      "text": "12.5 BTU/h = 0.00104167 TR"
    },
    {
      "value": 100,
      "result": 0.00833333,
      "text": "100 BTU/h = 0.00833333 TR"
    }
  ],
  "table": [
    {
      "BTU/h": 1,
      "ton_refrigeration": 0.0000833333
    },
    {
      "BTU/h": 2,
      "ton_refrigeration": 0.000166667
    },
    {
      "BTU/h": 3,
      "ton_refrigeration": 0.00025
    },
    {
      "BTU/h": 4,
      "ton_refrigeration": 0.000333333
    },
    {
      "BTU/h": 5,
      "ton_refrigeration": 0.000416667
    },
    {
      "BTU/h": 6,
      "ton_refrigeration": 0.0005
    },
    {
      "BTU/h": 7,
      "ton_refrigeration": 0.000583333
    },
    {
      "BTU/h": 8,
      "ton_refrigeration": 0.000666667
    },
    {
      "BTU/h": 9,
      "ton_refrigeration": 0.00075
    },
    {
      "BTU/h": 10,
      "ton_refrigeration": 0.000833333
    },
    {
      "BTU/h": 15,
      "ton_refrigeration": 0.00125
    },
    {
      "BTU/h": 20,
      "ton_refrigeration": 0.00166667
    },
    {
      "BTU/h": 25,
      "ton_refrigeration": 0.00208333
    },
    {
      "BTU/h": 30,
      "ton_refrigeration": 0.0025
    },
    {
      "BTU/h": 40,
      "ton_refrigeration": 0.00333333
    },
    {
      "BTU/h": 50,
      "ton_refrigeration": 0.00416667
    },
    {
      "BTU/h": 75,
      "ton_refrigeration": 0.00625
    },
    {
      "BTU/h": 100,
      "ton_refrigeration": 0.00833333
    },
    {
      "BTU/h": 200,
      "ton_refrigeration": 0.0166667
    },
    {
      "BTU/h": 250,
      "ton_refrigeration": 0.0208333
    },
    {
      "BTU/h": 500,
      "ton_refrigeration": 0.0416667
    },
    {
      "BTU/h": 1000,
      "ton_refrigeration": 0.0833333
    }
  ],
  "faq": [
    {
      "q": "How many tons of refrigeration are in one BTU per hour?",
      "a": "1 BTU/h = 0.0000833333 TR. 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 BTU per hour to tons of refrigeration?",
      "a": "Multiply the value in BTU per hour by 0.00008333333333: tons of refrigeration = BTU per hour × 0.00008333333333. For example, 5 BTU/h = 0.000416667 TR."
    },
    {
      "q": "How do I convert tons of refrigeration back to BTU per hour?",
      "a": "Multiply by the inverse factor 12000 (BTU per hour = tons of refrigeration × 12000), or use the tons of refrigeration-to-BTU per hour 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=BTU%2Fh&to_unit=ton_refrigeration",
    "calculator": "https://tttkmbb.com/api/v1/calculate/power?value=5&from_unit=BTU%2Fh&to_unit=ton_refrigeration",
    "mcp_tool": "convert_units",
    "mcp_arguments": {
      "value": 5,
      "from_unit": "BTU/h",
      "to_unit": "ton_refrigeration"
    }
  },
  "links": {
    "html": "https://tttkmbb.com/conversion/btu-per-hour-to-tons-of-refrigeration",
    "markdown": "https://tttkmbb.com/conversion/btu-per-hour-to-tons-of-refrigeration.md",
    "json": "https://tttkmbb.com/conversion/btu-per-hour-to-tons-of-refrigeration.json",
    "reverse": "https://tttkmbb.com/conversion/tons-of-refrigeration-to-btu-per-hour",
    "quantity_converter": "https://tttkmbb.com/conversion/power",
    "units": "https://tttkmbb.com/api/v1/units?quantity=power"
  },
  "timestamp": "2026-09-24"
}