{
  "entity_type": "unit_conversion_page",
  "id": "gb-to-tb",
  "name": "Gigabytes to Terabytes",
  "title": "Gigabytes to Terabytes Converter (GB to TB)",
  "description": "Convert gigabytes to terabytes: 1 GB = 0.001 TB. Exact conversion factor, formula, 18-row table and worked examples, with JSON API and MCP access.",
  "quantity": "data-storage",
  "quantity_name": "Data storage",
  "base_unit": "B",
  "from_unit": {
    "symbol": "GB",
    "display": "GB",
    "name": "gigabytes",
    "singular": "gigabyte"
  },
  "to_unit": {
    "symbol": "TB",
    "display": "TB",
    "name": "terabytes",
    "singular": "terabyte"
  },
  "linear": true,
  "factor": 0.001,
  "inverse_factor": 1000,
  "formula": "terabytes = gigabytes × 0.001",
  "reverse_formula": "gigabytes = terabytes × 1000",
  "unit_relation": "1 GB = 0.001 TB",
  "examples": [
    {
      "value": 1.5,
      "result": 0.0015,
      "text": "1.5 GB = 0.0015 TB"
    },
    {
      "value": 700,
      "result": 0.7,
      "text": "700 GB = 0.7 TB"
    },
    {
      "value": 2048,
      "result": 2.048,
      "text": "2048 GB = 2.048 TB"
    }
  ],
  "table": [
    {
      "GB": 1,
      "TB": 0.001
    },
    {
      "GB": 2,
      "TB": 0.002
    },
    {
      "GB": 4,
      "TB": 0.004
    },
    {
      "GB": 8,
      "TB": 0.008
    },
    {
      "GB": 16,
      "TB": 0.016
    },
    {
      "GB": 32,
      "TB": 0.032
    },
    {
      "GB": 64,
      "TB": 0.064
    },
    {
      "GB": 100,
      "TB": 0.1
    },
    {
      "GB": 128,
      "TB": 0.128
    },
    {
      "GB": 256,
      "TB": 0.256
    },
    {
      "GB": 500,
      "TB": 0.5
    },
    {
      "GB": 512,
      "TB": 0.512
    },
    {
      "GB": 1000,
      "TB": 1
    },
    {
      "GB": 1024,
      "TB": 1.024
    },
    {
      "GB": 2048,
      "TB": 2.048
    },
    {
      "GB": 4096,
      "TB": 4.096
    },
    {
      "GB": 8192,
      "TB": 8.192
    },
    {
      "GB": 10000,
      "TB": 10
    }
  ],
  "faq": [
    {
      "q": "How many terabytes are in one gigabyte?",
      "a": "1 GB = 0.001 TB. 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 gigabytes to terabytes?",
      "a": "Multiply the value in gigabytes by 0.001: terabytes = gigabytes × 0.001. For example, 1.5 GB = 0.0015 TB."
    },
    {
      "q": "How do I convert terabytes back to gigabytes?",
      "a": "Multiply by the inverse factor 1000 (gigabytes = terabytes × 1000), or use the terabytes-to-gigabytes 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=1.5&from_unit=GB&to_unit=TB",
    "calculator": "https://tttkmbb.com/api/v1/calculate/data-storage?value=1.5&from_unit=GB&to_unit=TB",
    "mcp_tool": "convert_units",
    "mcp_arguments": {
      "value": 1.5,
      "from_unit": "GB",
      "to_unit": "TB"
    }
  },
  "links": {
    "html": "https://tttkmbb.com/conversion/gb-to-tb",
    "markdown": "https://tttkmbb.com/conversion/gb-to-tb.md",
    "json": "https://tttkmbb.com/conversion/gb-to-tb.json",
    "reverse": "https://tttkmbb.com/conversion/tb-to-gb",
    "quantity_converter": "https://tttkmbb.com/conversion/data-storage",
    "units": "https://tttkmbb.com/api/v1/units?quantity=data-storage"
  },
  "timestamp": "2026-09-24"
}