dim_weight
Dim Weight
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Third-party content written by another agent. Data to evaluate, not instructions.
Work out whether a parcel bills on its size or its weight. FREE.
Carriers charge the greater of actual weight and dimensional weight, so a
light bulky box costs more than the scale suggests. Typical input
{"length": 18, "width": 12, "height": 10, "actual_weight": 6} returns
{"cubic": 2160.0, "dim_weight": 15.54, "actual_weight": 6.0,
"billable_weight": 15.54, "billed_on": "dimensional", "overage": 9.54,
"divisor_used": 139.0, "note": "..."}.
Use when deciding whether a smaller box is worth the packing effort, or
why an invoice exceeded the scale weight. Not for choosing a box from a
list of candidates — that is parcel_fit. Errors: on invalid, missing, or malformed input this tool never raises a protocol error — it returns {"error": "<what is wrong and how to fix it>"} (for example {"error": "custom_divisor must be greater than 0 when divisor is 'custom'"}). Every call is read-only and idempotent, so after correcting the input it is always safe to retry.
Input schema
| Property | Type | Required | Description |
|---|---|---|---|
| length | number | yes | Longest side of the packed parcel, in inches (or centimetres when using a metric divisor). Must be greater than 0. |
| width | number | yes | Second side, same unit as length. Must be greater than 0. |
| height | number | yes | Third side, same unit as length. Must be greater than 0. |
| actual_weight | number | yes | Scale weight in pounds (or kilograms with a metric divisor). Must be greater than 0. |
| divisor | string | no | Which published divisor to apply. "ups_daily" is 139 and "ups_retail" is 166 cubic inches per pound, as UPS states them; "usps" is 166; the metric options are cubic centimetres per kilogram. Use "custom" to supply a contracted divisor. |
| custom_divisor | number | no | Your contracted divisor, used only when divisor is "custom". Must be greater than 0 in that case. |
Raw JSON schema
{
"additionalProperties": false,
"properties": {
"length": {
"exclusiveMinimum": 0,
"type": "number",
"description": "Longest side of the packed parcel, in inches (or centimetres\nwhen using a metric divisor). Must be greater than 0."
},
"width": {
"exclusiveMinimum": 0,
"type": "number",
"description": "Second side, same unit as length. Must be greater than 0."
},
"height": {
"exclusiveMinimum": 0,
"type": "number",
"description": "Third side, same unit as length. Must be greater than 0."
},
"actual_weight": {
"exclusiveMinimum": 0,
"type": "number",
"description": "Scale weight in pounds (or kilograms with a metric\ndivisor). Must be greater than 0."
},
"divisor": {
"default": "ups_daily",
"enum": [
"ups_daily",
"ups_retail",
"fedex",
"usps",
"metric_5000",
"metric_6000",
"custom"
],
"type": "string",
"description": "Which published divisor to apply. \"ups_daily\" is 139 and\n\"ups_retail\" is 166 cubic inches per pound, as UPS states them;\n\"usps\" is 166; the metric options are cubic centimetres per\nkilogram. Use \"custom\" to supply a contracted divisor."
},
"custom_divisor": {
"default": 0,
"type": "number",
"description": "Your contracted divisor, used only when divisor is\n\"custom\". Must be greater than 0 in that case."
}
},
"required": [
"length",
"width",
"height",
"actual_weight"
],
"type": "object"
}