{
  "entity_type": "unit_conversion_page",
  "id": "lb-per-ft3-to-kg-per-liter",
  "name": "Pounds per cubic foot to Kilograms per liter",
  "title": "Pounds per cubic foot to Kilograms per liter Converter (lb/ft³ to kg/L)",
  "description": "Convert pounds per cubic foot to kilograms per liter: 1 lb/ft³ = 0.0160185 kg/L. Exact conversion factor, formula, 22-row table and worked examples, with JSON API and MCP access.",
  "quantity": "density",
  "quantity_name": "Density",
  "base_unit": "kg/m3",
  "from_unit": {
    "symbol": "lb/ft3",
    "display": "lb/ft³",
    "name": "pounds per cubic foot",
    "singular": "pound per cubic foot"
  },
  "to_unit": {
    "symbol": "kg/L",
    "display": "kg/L",
    "name": "kilograms per liter",
    "singular": "kilogram per liter"
  },
  "linear": true,
  "factor": 0.01601846337,
  "inverse_factor": 62.42796058,
  "formula": "kilograms per liter = pounds per cubic foot × 0.01601846337",
  "reverse_formula": "pounds per cubic foot = kilograms per liter × 62.42796058",
  "unit_relation": "1 lb/ft³ = 0.0160185 kg/L",
  "examples": [
    {
      "value": 5,
      "result": 0.0800923,
      "text": "5 lb/ft³ = 0.0800923 kg/L"
    },
    {
      "value": 12.5,
      "result": 0.200231,
      "text": "12.5 lb/ft³ = 0.200231 kg/L"
    },
    {
      "value": 100,
      "result": 1.60185,
      "text": "100 lb/ft³ = 1.60185 kg/L"
    }
  ],
  "table": [
    {
      "lb/ft3": 1,
      "kg/L": 0.0160185
    },
    {
      "lb/ft3": 2,
      "kg/L": 0.0320369
    },
    {
      "lb/ft3": 3,
      "kg/L": 0.0480554
    },
    {
      "lb/ft3": 4,
      "kg/L": 0.0640739
    },
    {
      "lb/ft3": 5,
      "kg/L": 0.0800923
    },
    {
      "lb/ft3": 6,
      "kg/L": 0.0961108
    },
    {
      "lb/ft3": 7,
      "kg/L": 0.112129
    },
    {
      "lb/ft3": 8,
      "kg/L": 0.128148
    },
    {
      "lb/ft3": 9,
      "kg/L": 0.144166
    },
    {
      "lb/ft3": 10,
      "kg/L": 0.160185
    },
    {
      "lb/ft3": 15,
      "kg/L": 0.240277
    },
    {
      "lb/ft3": 20,
      "kg/L": 0.320369
    },
    {
      "lb/ft3": 25,
      "kg/L": 0.400462
    },
    {
      "lb/ft3": 30,
      "kg/L": 0.480554
    },
    {
      "lb/ft3": 40,
      "kg/L": 0.640739
    },
    {
      "lb/ft3": 50,
      "kg/L": 0.800923
    },
    {
      "lb/ft3": 75,
      "kg/L": 1.20138
    },
    {
      "lb/ft3": 100,
      "kg/L": 1.60185
    },
    {
      "lb/ft3": 200,
      "kg/L": 3.20369
    },
    {
      "lb/ft3": 250,
      "kg/L": 4.00462
    },
    {
      "lb/ft3": 500,
      "kg/L": 8.00923
    },
    {
      "lb/ft3": 1000,
      "kg/L": 16.0185
    }
  ],
  "faq": [
    {
      "q": "How many kilograms per liter are in one pound per cubic foot?",
      "a": "1 lb/ft³ = 0.0160185 kg/L. 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 pounds per cubic foot to kilograms per liter?",
      "a": "Multiply the value in pounds per cubic foot by 0.01601846337: kilograms per liter = pounds per cubic foot × 0.01601846337. For example, 5 lb/ft³ = 0.0800923 kg/L."
    },
    {
      "q": "How do I convert kilograms per liter back to pounds per cubic foot?",
      "a": "Multiply by the inverse factor 62.42796058 (pounds per cubic foot = kilograms per liter × 62.42796058), or use the kilograms per liter-to-pounds per cubic foot 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=lb%2Fft3&to_unit=kg%2FL",
    "calculator": "https://tttkmbb.com/api/v1/calculate/density?value=5&from_unit=lb%2Fft3&to_unit=kg%2FL",
    "mcp_tool": "convert_units",
    "mcp_arguments": {
      "value": 5,
      "from_unit": "lb/ft3",
      "to_unit": "kg/L"
    }
  },
  "links": {
    "html": "https://tttkmbb.com/conversion/lb-per-ft3-to-kg-per-liter",
    "markdown": "https://tttkmbb.com/conversion/lb-per-ft3-to-kg-per-liter.md",
    "json": "https://tttkmbb.com/conversion/lb-per-ft3-to-kg-per-liter.json",
    "reverse": "https://tttkmbb.com/conversion/kg-per-liter-to-lb-per-ft3",
    "quantity_converter": "https://tttkmbb.com/conversion/density",
    "units": "https://tttkmbb.com/api/v1/units?quantity=density"
  },
  "timestamp": "2026-09-24"
}