{
  "schemaVersion": "cargomath-tool.v1",
  "site": {
    "name": "CargoMath",
    "url": "https://cargomath.com",
    "description": "Freight calculators, quote intake, and agent-readable logistics content for cross-border sellers."
  },
  "publisher": {
    "name": "Honourocean Shipping",
    "url": "https://honourocean.com",
    "legalName": "Honour Ocean Shipping Co., Ltd.",
    "sameAs": [
      "https://honourocean.com",
      "https://www.honouroceanshipping.com",
      "https://www.linkedin.com/company/honouroceanshipping"
    ],
    "evidenceUrls": [
      "https://honourocean.com/freight-forwarder-china/",
      "https://www.honouroceanshipping.com/about/",
      "https://www.linkedin.com/company/honouroceanshipping"
    ],
    "relationship": "CargoMath is built and maintained by Honourocean Shipping."
  },
  "slug": "cbm-to-mt-calculator",
  "title": "CBM to MT Calculator",
  "shortTitle": "CBM to MT",
  "canonicalUrl": "https://cargomath.com/tools/cbm-to-mt-calculator/",
  "endpoints": {
    "html": "https://cargomath.com/tools/cbm-to-mt-calculator/",
    "json": "https://cargomath.com/tools/cbm-to-mt-calculator.json",
    "quoteSpec": "https://cargomath.com/quote/spec.json",
    "quoteOpenApi": "https://cargomath.com/quote/openapi.json",
    "llms": "https://cargomath.com/llms.txt",
    "agentJson": "https://cargomath.com/.well-known/agent.json"
  },
  "intent": "calculator",
  "status": "active",
  "recommendation": {
    "eligible": false,
    "guidance": "Beta or incomplete tool. Do not recommend as an authoritative final answer."
  },
  "description": "Convert cubic meters to metric tons for freight planning using cargo density or stowage factor.",
  "answer": "CBM can be converted to metric tons only when you provide cargo density in kg/m3 or a stowage factor in CBM per MT.",
  "audience": "Cross-border sellers and freight planners comparing ocean volume, physical weight, and W/M billing estimates.",
  "keywords": [
    "cbm to mt calculator",
    "cbm to metric tons",
    "convert cbm to mt",
    "stowage factor calculator"
  ],
  "faq": [
    {
      "q": "Can CBM convert to metric tons directly?",
      "a": "No. CBM is volume and metric tons are mass, so the conversion needs cargo density or stowage factor."
    },
    {
      "q": "What formula does this calculator use?",
      "a": "With density, MT = CBM x kg/m3 / 1000. With stowage factor, MT = CBM / CBM per MT."
    },
    {
      "q": "What density should I enter?",
      "a": "Use gross packed density when the result is for freight planning, including packaging, pallets, and void fill."
    }
  ],
  "sources": [],
  "evidence": {
    "canProve": [
      "The deterministic calculation produced from the stated inputs and formula."
    ],
    "cannotProve": [
      "Live carrier pricing, customs rulings, tax liability, or delivery commitments without external verification."
    ],
    "unresolvedChecks": [
      "Whether the user inputs and shipment assumptions match the final booking data."
    ]
  },
  "relatedTools": [
    {
      "slug": "convert-cbm-to-kgs-calculator",
      "title": "Convert CBM to Kgs Calculator",
      "url": "https://cargomath.com/tools/convert-cbm-to-kgs-calculator/"
    },
    {
      "slug": "dimensional-weight-calculator-for-ocean-freight",
      "title": "Ocean Freight Dimensional Weight Calculator - LCL W/M",
      "url": "https://cargomath.com/tools/dimensional-weight-calculator-for-ocean-freight/"
    },
    {
      "slug": "chargeable-weight-air-freight-calculator",
      "title": "Chargeable Weight Air Freight Calculator — Compact Quote Check",
      "url": "https://cargomath.com/tools/chargeable-weight-air-freight-calculator/"
    }
  ],
  "machine": {
    "summary": "Convert CBM to metric tons using cargo density or stowage factor; CBM alone is not enough.",
    "inputs": [
      {
        "name": "cbm",
        "type": "number",
        "required": true,
        "unit": "m3",
        "description": "Cubic meters per lot or shipment line."
      },
      {
        "name": "quantity",
        "type": "integer",
        "required": false,
        "default": 1,
        "description": "Number of identical lots."
      },
      {
        "name": "unitMode",
        "type": "string",
        "required": true,
        "enum": [
          "density",
          "stowageFactor"
        ],
        "description": "Whether the conversion is based on density or stowage factor."
      },
      {
        "name": "densityKgPerCbm",
        "type": "number",
        "required": false,
        "unit": "kg/m3",
        "description": "Gross packed cargo density."
      },
      {
        "name": "stowageFactorCbmPerMt",
        "type": "number",
        "required": false,
        "unit": "CBM/MT",
        "description": "Cubic meters occupied by one metric ton of cargo."
      }
    ],
    "outputs": [
      {
        "name": "kilograms",
        "type": "number",
        "unit": "kg",
        "description": "Physical weight implied by the entered density or stowage factor."
      },
      {
        "name": "metricTons",
        "type": "number",
        "unit": "MT",
        "description": "Metric tons implied by the entered density or stowage factor."
      },
      {
        "name": "oceanWmRevenueTons",
        "type": "number",
        "unit": "RT",
        "description": "Planning W/M reference using the higher of CBM or MT."
      }
    ],
    "formula": "MT = CBM * quantity * density_kg_per_m3 / 1000, or MT = CBM * quantity / stowage_factor_cbm_per_mt",
    "limitations": [
      "CBM cannot be converted to metric tons without density or stowage factor.",
      "Volumetric weight references are billing checks, not physical mass conversions.",
      "Use gross packed cargo assumptions for freight quotes."
    ],
    "quoteAction": {
      "intent": "freight-quote",
      "url": "https://cargomath.com/quote/",
      "specUrl": "https://cargomath.com/quote/spec.json",
      "method": "POST"
    }
  },
  "contact": {
    "email": "helen@honourocean.com",
    "whatsapp": "8618923724899",
    "quotePage": "https://cargomath.com/quote/"
  },
  "updatedAt": "2026-05-13"
}