{
  "id": "v20-us-towing-capacity",
  "version": "20.16.0",
  "name": "Towing Rating Cross-Check Calculator — United States",
  "shortName": "Towing Rating Cross-Check",
  "description": "Cross-check multiple entered weight ratings instead of treating the advertised maximum tow rating as the only limit. USD planning view; stated limitations apply.",
  "category": "Vehicles & Travel",
  "categorySlug": "vehicles-travel",
  "keywords": [
    "towing-capacity",
    "us",
    "vehicle-energy",
    "consumer-finance",
    "vehicle-rating"
  ],
  "status": "live",
  "workStatus": "pending",
  "reviewStatus": "pending",
  "migrationStatus": "new",
  "engine": "native",
  "creator": null,
  "reviewer": null,
  "quality": {
    "availability": "live",
    "technicalReviewRecord": "/reviews/v20-us-towing-capacity.json",
    "qualifiedReview": "pending",
    "qualifiedReviewer": null,
    "qualifiedReviewDate": null,
    "formulaVersion": "20.16.0",
    "referenceCoverage": "references-listed",
    "releaseTestScope": "Catalog and regression checks are not a professional formula audit; consult release evidence.",
    "historicalMetadataDate": "",
    "historicalMetadataNotice": "The imported date is not evidence of a completed human review."
  },
  "notice": "Illustrative defaults are not local quotes or verified legal rules. Dated reference components and user-entered assumptions are explicitly distinguished. Professional review is pending.",
  "urls": {
    "page": "/us/towing-capacity/",
    "definition": "/us/towing-capacity/definition.json",
    "schema": "/us/towing-capacity/schema.json",
    "llms": "/us/towing-capacity/llms.txt",
    "legacyDefinition": "/us/towing-capacity/definition.json"
  },
  "queryExample": "https://askcalculators.com/us/towing-capacity/?unitSystem=imperial&gcwr=13227.735731092655&loadedVehicle=5511.5565546219395&towRating=6613.867865546327&payloadRemaining=1102.311310924388&tonguePercent=12&hitchTrailerLimit=6613.867865546327&hitchTongueLimit=771.6179176470715",
  "queryParameters": {
    "unitSystem": {
      "label": "Measurement system",
      "type": "select",
      "required": false,
      "default": "imperial"
    },
    "gcwr": {
      "label": "Manufacturer gross combination weight rating",
      "type": "number",
      "required": true,
      "default": 13227.735731092655
    },
    "loadedVehicle": {
      "label": "Actual loaded tow-vehicle weight before trailer tongue",
      "type": "number",
      "required": true,
      "default": 5511.5565546219395
    },
    "towRating": {
      "label": "Configuration-specific manufacturer trailer rating",
      "type": "number",
      "required": true,
      "default": 6613.867865546327
    },
    "payloadRemaining": {
      "label": "Actual remaining vehicle payload",
      "type": "number",
      "required": true,
      "default": 1102.311310924388
    },
    "tonguePercent": {
      "label": "Measured/expected trailer tongue-weight fraction",
      "type": "percent",
      "required": true,
      "default": 12
    },
    "hitchTrailerLimit": {
      "label": "Hitch trailer-weight rating",
      "type": "number",
      "required": true,
      "default": 6613.867865546327
    },
    "hitchTongueLimit": {
      "label": "Hitch tongue-weight rating",
      "type": "number",
      "required": true,
      "default": 771.6179176470715
    }
  },
  "inputs": [
    {
      "id": "unitSystem",
      "label": "Measurement system",
      "type": "select",
      "defaultValue": "imperial",
      "options": [
        {
          "value": "imperial",
          "label": "Imperial (US gallons / short tons where relevant)"
        },
        {
          "value": "metric",
          "label": "Metric"
        }
      ]
    },
    {
      "id": "gcwr",
      "label": "Manufacturer gross combination weight rating",
      "type": "number",
      "defaultValue": 13227.735731092655,
      "required": true,
      "min": 0,
      "max": 2204622621848.776,
      "suffix": "lb",
      "unitConversion": {
        "factor": 0.45359237,
        "offset": 0,
        "inverse": false,
        "metric": "kg",
        "imperial": "lb",
        "canonicalMin": 0,
        "canonicalMax": 1000000000000
      },
      "help": "Illustrative starting value; replace with your own evidence."
    },
    {
      "id": "loadedVehicle",
      "label": "Actual loaded tow-vehicle weight before trailer tongue",
      "type": "number",
      "defaultValue": 5511.5565546219395,
      "required": true,
      "min": 0,
      "max": 2204622621848.776,
      "suffix": "lb",
      "unitConversion": {
        "factor": 0.45359237,
        "offset": 0,
        "inverse": false,
        "metric": "kg",
        "imperial": "lb",
        "canonicalMin": 0,
        "canonicalMax": 1000000000000
      },
      "help": "Illustrative starting value; replace with your own evidence."
    },
    {
      "id": "towRating",
      "label": "Configuration-specific manufacturer trailer rating",
      "type": "number",
      "defaultValue": 6613.867865546327,
      "required": true,
      "min": 0,
      "max": 2204622621848.776,
      "suffix": "lb",
      "unitConversion": {
        "factor": 0.45359237,
        "offset": 0,
        "inverse": false,
        "metric": "kg",
        "imperial": "lb",
        "canonicalMin": 0,
        "canonicalMax": 1000000000000
      },
      "help": "Illustrative starting value; replace with your own evidence."
    },
    {
      "id": "payloadRemaining",
      "label": "Actual remaining vehicle payload",
      "type": "number",
      "defaultValue": 1102.311310924388,
      "required": true,
      "min": 0,
      "max": 2204622621848.776,
      "suffix": "lb",
      "unitConversion": {
        "factor": 0.45359237,
        "offset": 0,
        "inverse": false,
        "metric": "kg",
        "imperial": "lb",
        "canonicalMin": 0,
        "canonicalMax": 1000000000000
      },
      "help": "Illustrative starting value; replace with your own evidence."
    },
    {
      "id": "tonguePercent",
      "label": "Measured/expected trailer tongue-weight fraction",
      "type": "percent",
      "defaultValue": 12,
      "required": true,
      "min": 0,
      "max": 50,
      "step": 0.1,
      "help": "Illustrative starting value; replace with your own evidence."
    },
    {
      "id": "hitchTrailerLimit",
      "label": "Hitch trailer-weight rating",
      "type": "number",
      "defaultValue": 6613.867865546327,
      "required": true,
      "min": 0,
      "max": 2204622621848.776,
      "suffix": "lb",
      "unitConversion": {
        "factor": 0.45359237,
        "offset": 0,
        "inverse": false,
        "metric": "kg",
        "imperial": "lb",
        "canonicalMin": 0,
        "canonicalMax": 1000000000000
      },
      "help": "Illustrative starting value; replace with your own evidence."
    },
    {
      "id": "hitchTongueLimit",
      "label": "Hitch tongue-weight rating",
      "type": "number",
      "defaultValue": 771.6179176470715,
      "required": true,
      "min": 0,
      "max": 2204622621848.776,
      "suffix": "lb",
      "unitConversion": {
        "factor": 0.45359237,
        "offset": 0,
        "inverse": false,
        "metric": "kg",
        "imperial": "lb",
        "canonicalMin": 0,
        "canonicalMax": 1000000000000
      },
      "help": "Illustrative starting value; replace with your own evidence."
    }
  ],
  "outputs": [
    {
      "id": "combinationLimit",
      "label": "Trailer allowance from combination rating",
      "format": "number",
      "digits": 2,
      "unit": "mass"
    },
    {
      "id": "payloadLimit",
      "label": "Trailer allowance from remaining payload",
      "format": "number",
      "digits": 2,
      "unit": "mass"
    },
    {
      "id": "hitchLimit",
      "label": "Trailer allowance from hitch tongue rating",
      "format": "number",
      "digits": 2,
      "unit": "mass"
    },
    {
      "id": "limitingWeight",
      "label": "Lowest entered arithmetic trailer allowance",
      "format": "number",
      "digits": 2,
      "unit": "mass",
      "primary": true
    }
  ],
  "formula": {
    "expression": "arithmetic trailer allowance = minimum(combination rating − loaded vehicle, vehicle tow rating, remaining payload/tongue fraction, hitch rating, hitch tongue rating/tongue fraction).",
    "note": "Inputs are converted to canonical units before evaluating this stated formula."
  },
  "examples": [
    {
      "label": "Illustrative defaults; required verification checks remain unconfirmed",
      "inputs": {
        "unitSystem": "imperial",
        "gcwr": 13227.735731092655,
        "loadedVehicle": 5511.5565546219395,
        "towRating": 6613.867865546327,
        "payloadRemaining": 1102.311310924388,
        "tonguePercent": 12,
        "hitchTrailerLimit": 6613.867865546327,
        "hitchTongueLimit": 771.6179176470715
      }
    }
  ],
  "sources": [
    {
      "label": "DOE energy-use arithmetic",
      "url": "https://www.energy.gov/energysaver/save-electricity-and-fuel/appliances-and-electronics/estimating-appliance-and-home"
    },
    {
      "label": "NIST unit conversion guidance",
      "url": "https://www.nist.gov/pml/special-publication-811"
    },
    {
      "label": "CFPB loan-estimate explanation",
      "url": "https://www.consumerfinance.gov/owning-a-home/loan-estimate/"
    }
  ],
  "publicSlug": "towing-capacity",
  "namespace": "us",
  "countries": [
    "us",
    "ca",
    "uk",
    "ie"
  ]
}