Freight Cost Calculator

The Freight Cost Calculator estimates what a less-than-truckload shipment will cost. You enter the piece count, dimensions and weight, the rate and discount you have been quoted, the fuel surcharge, and any accessorial charges, and it works out the billable weight, the freight class the density suggests, and the all-in cost broken down per pound, per piece and per cubic foot.

The central question it answers is which weight you will actually be billed for: the shipment's real weight, or the weight the carrier assigns to the space it occupies.

Dimensions are in inches, weights in pounds, and costs in your currency.

Use it to check a quote or estimate a shipment. The freight class it suggests is from density alone, which is not how classification actually works.

Purpose and model boundary

This model builds a less-than-truckload-style freight estimate from shipment geometry, actual and dimensional weight, a user-entered hundredweight rate, discount, fuel surcharge, minimum charge, and up to five additional line-item amounts. It also reports density and an illustrative density-based class suggestion.

It is not a carrier tariff, quote, bill of lading, or authoritative freight classification. The user supplies the commercial rate and carrier-specific dimensional divisor.

Inputs and units

Governing relationships

The workbook uses 1,728 cubic inches per cubic foot and 100 pounds per hundredweight:

Actual weight = N × w

Cube per piece = length × width × height / 1728

Total cube = N × cube per piece

Density = actual weight / total cube

Dimensional weight per piece = length × width × height / d

Total dimensional weight = N × dimensional weight per piece

Billable weight = max(actual weight, total dimensional weight)

Hundredweight billed = billable weight / 100

Gross line haul = hundredweight billed × R

Net line haul = gross line haul × (1 - u / 100)

Fuel surcharge amount = net line haul × f / 100

Freight charge = max(net line haul + fuel surcharge amount, M)

Total cost = freight charge + sum(line-item amounts)

Cost per pound, piece, and cubic foot divide total cost by actual shipment weight, number of pieces, and total cube respectively.

Calculation sequence

1. Multiply the identical-piece inputs into total actual weight and total cube.
2. Calculate density and use an approximate-match lookup against the workbook's editable illustrative density bands to suggest a class.
3. Calculate dimensional weight and select the larger of dimensional and actual weight.
4. Convert billable pounds to hundredweight, apply the entered rate and discount, and add the fuel surcharge.
5. Apply the minimum charge before adding the five line-item amounts.
6. Calculate unit-cost measures and evaluate Model_Status.

Outputs and interpretation

Total_Cost is the complete estimate including the fixed line-item grid. Freight_Charge is the minimum-constrained line-haul and fuel amount before those extras. Dimensional_Weight_Governs and Minimum_Charge_Applies explain why a lighter shipment may not lower the estimate. Suggested_Class is only a density guide; actual classification can depend on commodity, handling, stowability, liability, and carrier rules.

Validation and status logic

The minimum-charge warning takes precedence when both minimum charge and dimensional weight apply.

Assumptions and limitations

• Every piece is assumed to have the same dimensions and weight.
• The calculation uses continuous billable weight and hundredweight; it does not reproduce a carrier's rounding, deficit-rating, lane, zone, pallet, mode, or minimum-density rules.
• The entered rate, discount, surcharge, divisor, and minimum charge must come from the applicable carrier or agreement. No tariff is embedded.
• The density-to-class table is illustrative and is not an NMFC or other licensed classification publication.
• Accessorial descriptions and amounts are user-authored. The workbook does not validate whether a fee is taxable, duplicated, already included, or denominated in another currency.
• Taxes, distance, transit time, insurance, liability, currency conversion, and service commitments are outside the model unless the user includes them consistently in the supplied amounts.

Restrictions and non-computing states

This calculator requires at least one piece, rejects negative scalar inputs and line-item amounts, and limits discount to 0 through 100 percent. The line-item grid has five editable rows; blank descriptions and rows are allowed, but the page cannot add a sixth charge. The workbook cannot compute a physical or billing basis when total actual weight, total cube, or the dimensional divisor is nonpositive and returns the corresponding NOT VALID status. The density bands and suggested-class mapping are fixed illustrative workbook data on this page.

Errors and warnings

This calculator can refuse out-of-range scalar or grid values before the workbook runs. NOT VALID means the physical shipment basis cannot be computed. CHECK means a cost was computed but either a billing floor or dimensional weight controls the estimate. A service or connection error is not a pricing or classification result.

The workbook derives its relations rather than reproducing any table, chart or figure from a tariff or classification publication. The density-to-class mapping is illustrative and is not the NMFC.

• National Motor Freight Traffic Association. Classification, the governing system for LTL freight class in the United States. https://nmfta.org/standards/classification/
• NMFTA. What is a freight class?, confirming that classification considers density, stowability, handling and liability, not density alone. https://help.nmfta.org/hc/en-us/articles/38930897853851-Classification-FAQ-What-is-a-freight-class
• NMFTA. How is the density of a handling unit calculated? https://help.nmfta.org/hc/en-us/articles/38932065434011-How-is-the-density-of-a-handling-unit-calculated
• UPS. Chargeable and volumetric weight calculator, a carrier comparator for the billable-weight concept. https://www.ups.com/us/en/supplychain/freight/chargeable-and-volumetric-weight-calculator

The NMFC is a licensed publication and none of it is reproduced here. Your actual class, rate, discount, divisor and accessorial schedule come from your carrier agreement. No trademark or organisation name appearing in this tool implies endorsement by its owner.

Additional source notes migrated from Methodology

The physical calculations use standard inch-to-cubic-foot and dimensional-weight relationships. The delivered reviewer packet cites Freightos freight resources for comparison, while explicitly requiring the user-entered commercial rate and warning that the density class is only a guide.