Prepare a density check before using the carrier's tools
This independent FedEx Freight class calculator is for a shipper who wants a quick arithmetic check while preparing an LTL shipment. It accepts packed dimensions and weight, then returns a density and the corresponding suggestion on the standard density scale. It does not access a FedEx Freight account, consult a shipment record, retrieve a negotiated rate, or submit a booking. Nothing entered here is sent to a carrier.
Keep the commodity decision separate
The carrier's official classification guidance considers density alongside handling, stowability, and liability. A matching density result is therefore useful evidence about your measurements, but it is not confirmation of an NMFC commodity item. This tool has no commodity-description lookup. When the goods have a specific classification provision, check that provision through the carrier or an appropriate classification resource before placing a class on shipping paperwork.
Mixed goods deserve particular care. The official FedEx Freight guidance says that items with different classes placed on the same pallet default to the highest class of those items. Averaging their combined weight over the pallet volume cannot establish that highest commodity class. Likewise, a multi-pallet aggregate result here is a measurement summary, not an instruction to replace separate classification entries with one shipment-wide value.
Check a prepared pallet with an explicit example
Suppose your packed pallet measures 48 inches long, 40 inches wide, and 48 inches high, with a loaded weight of 480 pounds. Its volume is 48 multiplied by 40 multiplied by 48, divided by 1,728, or 53.333333 cubic feet. Dividing 480 by the unrounded volume gives 9 pounds per cubic foot. The standard density interval from 8 up to, but not including, 10 suggests class 100. This example demonstrates the arithmetic only; it does not assign an actual product to class 100.
Carry the right information into the next step
Before using the official carrier workflow, keep your measured dimensions, loaded weight, and a clear description of the contents together. For different pallet sizes, enter each unit separately above and inspect the expanded working. Include the pallet and packaging in your measurements. The two-decimal outputs are truncated for display while the class calculation retains full numeric precision.
For carrier-specific classification questions, use the official FedEx Freight classification resource. This page stops at a reproducible density estimate: it provides no rate promise, acceptance decision, surcharge calculation, or claim that a shipment has been approved. Compare a carrier result with these inputs before deciding what further information you need to clarify.