{
  "entity_type": "unit_conversion_page",
  "id": "tons-of-refrigeration-to-btu-per-hour",
  "name": "Tons of refrigeration to BTU per hour",
  "title": "Tons of refrigeration to BTU per hour Converter (TR to BTU/h)",
  "description": "Convert tons of refrigeration to BTU per hour: 1 TR = 12000 BTU/h. 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": "ton_refrigeration",
    "display": "TR",
    "name": "tons of refrigeration",
    "singular": "ton of refrigeration"
  },
  "to_unit": {
    "symbol": "BTU/h",
    "display": "BTU/h",
    "name": "BTU per hour",
    "singular": "BTU per hour"
  },
  "linear": true,
  "factor": 12000,
  "inverse_factor": 0.00008333333333,
  "formula": "BTU per hour = tons of refrigeration × 12000",
  "reverse_formula": "tons of refrigeration = BTU per hour × 0.00008333333333",
  "unit_relation": "1 TR = 12000 BTU/h",
  "examples": [
    {
      "value": 5,
      "result": 60000,
      "text": "5 TR = 60000 BTU/h"
    },
    {
      "value": 12.5,
      "result": 150000,
      "text": "12.5 TR = 150000 BTU/h"
    },
    {
      "value": 100,
      "result": 1200000,
      "text": "100 TR = 1200000 BTU/h"
    }
  ],
  "table": [
    {
      "ton_refrigeration": 1,
      "BTU/h": 12000
    },
    {
      "ton_refrigeration": 2,
      "BTU/h": 24000
    },
    {
      "ton_refrigeration": 3,
      "BTU/h": 36000
    },
    {
      "ton_refrigeration": 4,
      "BTU/h": 48000
    },
    {
      "ton_refrigeration": 5,
      "BTU/h": 60000
    },
    {
      "ton_refrigeration": 6,
      "BTU/h": 72000
    },
    {
      "ton_refrigeration": 7,
      "BTU/h": 84000
    },
    {
      "ton_refrigeration": 8,
      "BTU/h": 96000
    },
    {
      "ton_refrigeration": 9,
      "BTU/h": 108000
    },
    {
      "ton_refrigeration": 10,
      "BTU/h": 120000
    },
    {
      "ton_refrigeration": 15,
      "BTU/h": 180000
    },
    {
      "ton_refrigeration": 20,
      "BTU/h": 240000
    },
    {
      "ton_refrigeration": 25,
      "BTU/h": 300000
    },
    {
      "ton_refrigeration": 30,
      "BTU/h": 360000
    },
    {
      "ton_refrigeration": 40,
      "BTU/h": 480000
    },
    {
      "ton_refrigeration": 50,
      "BTU/h": 600000
    },
    {
      "ton_refrigeration": 75,
      "BTU/h": 900000
    },
    {
      "ton_refrigeration": 100,
      "BTU/h": 1200000
    },
    {
      "ton_refrigeration": 200,
      "BTU/h": 2400000
    },
    {
      "ton_refrigeration": 250,
      "BTU/h": 3000000
    },
    {
      "ton_refrigeration": 500,
      "BTU/h": 6000000
    },
    {
      "ton_refrigeration": 1000,
      "BTU/h": 12000000
    }
  ],
  "faq": [
    {
      "q": "How many BTU per hour are in one ton of refrigeration?",
      "a": "1 TR = 12000 BTU/h. 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 tons of refrigeration to BTU per hour?",
      "a": "Multiply the value in tons of refrigeration by 12000: BTU per hour = tons of refrigeration × 12000. For example, 5 TR = 60000 BTU/h."
    },
    {
      "q": "How do I convert BTU per hour back to tons of refrigeration?",
      "a": "Multiply by the inverse factor 0.00008333333333 (tons of refrigeration = BTU per hour × 0.00008333333333), or use the BTU per hour-to-tons of refrigeration 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_refrigeration&to_unit=BTU%2Fh",
    "calculator": "https://tttkmbb.com/api/v1/calculate/power?value=5&from_unit=ton_refrigeration&to_unit=BTU%2Fh",
    "mcp_tool": "convert_units",
    "mcp_arguments": {
      "value": 5,
      "from_unit": "ton_refrigeration",
      "to_unit": "BTU/h"
    }
  },
  "links": {
    "html": "https://tttkmbb.com/conversion/tons-of-refrigeration-to-btu-per-hour",
    "markdown": "https://tttkmbb.com/conversion/tons-of-refrigeration-to-btu-per-hour.md",
    "json": "https://tttkmbb.com/conversion/tons-of-refrigeration-to-btu-per-hour.json",
    "reverse": "https://tttkmbb.com/conversion/btu-per-hour-to-tons-of-refrigeration",
    "quantity_converter": "https://tttkmbb.com/conversion/power",
    "units": "https://tttkmbb.com/api/v1/units?quantity=power"
  },
  "timestamp": "2026-09-24"
}