{
  "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": "fedex-volumetric-weight-calculator",
  "title": "FedEx Volumetric Weight Calculator",
  "shortTitle": "FedEx Volumetric Weight",
  "canonicalUrl": "https://cargomath.com/tools/fedex-volumetric-weight-calculator/",
  "endpoints": {
    "html": "https://cargomath.com/tools/fedex-volumetric-weight-calculator/",
    "json": "https://cargomath.com/tools/fedex-volumetric-weight-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": true,
    "guidance": "Eligible for AI recommendation when the stated inputs, formula, and limitations fit the user question."
  },
  "description": "Planning estimator for FedEx dimensional or volumetric weight. Compare actual package weight with dimensional weight using common FedEx divisors or a custom account divisor.",
  "answer": "FedEx volumetric weight is estimated from package dimensions divided by the applicable FedEx dimensional divisor, then compared with actual weight because the higher value is usually the planning chargeable weight.",
  "audience": "Cross-border sellers and ecommerce operators checking FedEx package dimensional weight before quoting parcel or express shipments.",
  "keywords": [
    "fedex volumetric weight calculator",
    "fedex dimensional weight calculator",
    "fedex dim weight calculator",
    "fedex divisor 139 calculator",
    "fedex volumetric weight formula"
  ],
  "faq": [
    {
      "q": "Is this an official FedEx calculator?",
      "a": "No. This is an independent planning estimator. Confirm current FedEx service rules, rounding, divisor, and account terms in your FedEx account or rate guide."
    },
    {
      "q": "What FedEx divisor should I use?",
      "a": "For planning, FedEx commonly publishes 139 in3/lb for inch-pound calculations and 5000 cm3/kg for metric calculations, but account and service rules can vary."
    },
    {
      "q": "Does FedEx bill actual weight or dimensional weight?",
      "a": "FedEx package pricing generally compares actual weight with dimensional weight and uses the greater value for rating."
    },
    {
      "q": "Why does the calculator round dimensions?",
      "a": "Carrier dimensional-weight rules commonly use rounded package measurements. This estimator rounds each measurement up in the divisor unit for conservative planning."
    },
    {
      "q": "Can I use a negotiated divisor?",
      "a": "Yes. Choose custom divisor and enter the divisor from your FedEx contract, rate sheet, or account representative."
    },
    {
      "q": "Which page is canonical for this FedEx topic?",
      "a": "Use /tools/fedex-volumetric-weight-calculator/ as the canonical FedEx-specific planning estimator; /tools/volumetric-weight-calculator-fedex/ is an exact-match keyword variant."
    }
  ],
  "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": "volumetric-weight-calculator-fedex",
      "title": "Volumetric Weight Calculator for FedEx",
      "url": "https://cargomath.com/tools/volumetric-weight-calculator-fedex/"
    },
    {
      "slug": "volumetric-weight-calculator",
      "title": "Volumetric Weight Calculator — DIM Weight for Air & Courier",
      "url": "https://cargomath.com/tools/volumetric-weight-calculator/"
    },
    {
      "slug": "air-freight-dim-weight-calculator",
      "title": "Air Freight Dim Weight Calculator",
      "url": "https://cargomath.com/tools/air-freight-dim-weight-calculator/"
    },
    {
      "slug": "volumetric-weight-calculator-for-air-freight",
      "title": "Volumetric Weight Calculator for Air Freight",
      "url": "https://cargomath.com/tools/volumetric-weight-calculator-for-air-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": "Estimate FedEx dimensional weight from packed package dimensions, package count, actual weight, and a common or custom FedEx divisor.",
    "inputs": [
      {
        "name": "length",
        "type": "number",
        "required": true,
        "unit": "cm|m|in|ft",
        "description": "Outer package length."
      },
      {
        "name": "width",
        "type": "number",
        "required": true,
        "unit": "cm|m|in|ft",
        "description": "Outer package width."
      },
      {
        "name": "height",
        "type": "number",
        "required": true,
        "unit": "cm|m|in|ft",
        "description": "Outer package height."
      },
      {
        "name": "packages",
        "type": "integer",
        "required": false,
        "default": 1,
        "description": "Number of identical packages."
      },
      {
        "name": "actualWeightPerPackage",
        "type": "number",
        "required": true,
        "unit": "kg|lb",
        "description": "Scale weight for one package."
      },
      {
        "name": "divisor",
        "type": "number",
        "required": true,
        "unit": "cm3/kg|in3/lb|in3/kg",
        "description": "Dimensional-weight divisor. Common planning defaults include 139 in3/lb, 5000 cm3/kg, and 305 in3/kg."
      }
    ],
    "outputs": [
      {
        "name": "dimWeightLbTotal",
        "type": "number",
        "unit": "lb",
        "description": "Total dimensional weight across all packages."
      },
      {
        "name": "actualWeightLbTotal",
        "type": "number",
        "unit": "lb",
        "description": "Total actual scale weight across all packages."
      },
      {
        "name": "chargeableWeightLb",
        "type": "number",
        "unit": "lb",
        "description": "Greater of actual and dimensional weight for planning."
      },
      {
        "name": "billingBasis",
        "type": "string",
        "description": "Whether actual weight or dimensional weight controls."
      }
    ],
    "formula": "dim_weight = rounded_length * rounded_width * rounded_height / divisor; planning_chargeable_weight = max(actual_weight, dim_weight)",
    "limitations": [
      "Independent planning estimator only; it is not an official FedEx calculator.",
      "Confirm current FedEx divisor, rounding, service, packaging, oversize, and account rules before booking.",
      "Does not estimate FedEx base rates, surcharges, declared value, residential fees, or delivery-area fees."
    ],
    "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"
}