About this calculator

Map each measured handling unit to a density-scale estimate only when its applicable National Motor Freight Classification (NMFC) item uses the modeled full-density scale. This does not identify the commodity or item.

Inputs

How to use this calculator

Handling unit

  1. Outer length (in)Measure the longest tendered dimension, including the pallet and projections.
  2. Outer width (in)Use the widest tendered dimension, including packaging.
  3. Outer height (in)Include the pallet when it ships as part of this handling unit.
  4. Gross handling-unit weight (lb)Use measured tendered gross weight, including pallet and packaging.
  5. Identical handling unitsEach identical unit receives the same density-scale estimate.

Enter the shipment or scenario values, then select Calculate result.

Method

Formula and variables

For each handling unit, volume (ft³) = outer length × width × height (in) ÷ 1,728; density = gross weight (lb) ÷ volume (ft³). Map the density to the published 13-tier full-density scale.

Outer length (in)
Measure the longest tendered dimension, including the pallet and projections.
Outer width (in)
Use the widest tendered dimension, including packaging.
Outer height (in)
Include the pallet when it ships as part of this handling unit.
Gross handling-unit weight (lb)
Use measured tendered gross weight, including pallet and packaging.
Identical handling units
Each identical unit receives the same density-scale estimate.

Interpret the result

The class output is an estimate for each handling unit. Different items are not blended into a substitute for item-level provisions or a carrier agreement.

Outputs: Per-unit density and density-scale class estimate

This is a density-scale estimate, not an item-specific National Motor Freight Classification (NMFC) lookup or official classification. Use the full-density scale only when the applicable item and provisions call for it. Handling, stowability, liability, packaging, commodity-specific provisions and carrier agreements may affect class. Results are per handling unit; mixed items are not blended. Confirm the provisions effective on the shipment date before using an estimate.

Worked example

Check the arithmetic

This example uses the starting values shown above. The arithmetic below is calculated independently of the interactive result.

Work through the calculation

  1. Outside volume = 48 × 40 × 50 ÷ 1,728 = 55.555556 ft³.
  2. Density = 500 ÷ 55.555556 = 9 lb/ft³ using unrounded volume.
  3. The modeled 8 to under 10 lb/ft³ band gives a Class 100 estimate, subject to scale applicability.

Compare the displayed result

Expected displayed result: Class 100 estimate

FAQs

Does the estimate identify my NMFC item?

No. Confirm the applicable item, scale version and effective provisions independently. Handling, stowability, liability and agreements may change classification.

Sources

These references support the methods or rules used on this page. Check the version effective for your shipment date and any applicable carrier terms or item-specific provisions.

Example inputs and options

Starting values are examples unless a field identifies a dated rule. Unit selectors convert only fields marked for conversion. Rates and model options keep the units and basis shown in their labels.

Outer length (in)
Example: 48
Outer width (in)
Example: 40
Outer height (in)
Example: 50
Gross handling-unit weight (lb)
Example: 500
Identical handling units
Example: 1