Cost Calculator AI
Shipping, Logistics & WarehousingCommercial Freight

Freight Cost Calculator

Calculate commercial freight charges based on shipment weight in hundredweight (CWT), NMFC freight classification, lane mileage, fuel surcharges, and accessorial fees.

Freight Shipment & Rate Parameters

Total Freight Cost

$343.13

$28.59 / CWT

Base Linehaul

$223.44

12 CWT billable

Fuel Surcharge

$44.69

20% diesel adjustment

Rate Per Pound

$0.29 / lb

All-in cost per pound

Freight Shipping Cost Formula

Freight Cost = (\text{CWT Weight} \times \text{Class Multiplier} \times \text{Base CWT Rate}) + \text{Fuel Surcharge} + \text{Accessorials}
  • Hundredweight (CWT): Total shipment weight in pounds divided by 100, rounded up to the nearest whole unit.
  • Freight Class: Standard NMFC classifications from Class 50 (dense machinery) to Class 500 (low-density ping pong balls).
  • Fuel Surcharge: Distance and diesel price index percentage applied to the linehaul charge.
  • Accessorials: Fixed charges for liftgate, residential delivery, inside pickup, or delivery appointments.

Step-by-Step Worked Example

Scenario: Shipping 1,200 lbs of Class 85 manufactured parts across 600 miles with \$20.00 base CWT rate, 20% fuel surcharge, and \$75 liftgate service

Calculation Steps:

  1. Effective CWT Rate = \$20.00 × 0.85 × sqrt(600 / 500) = \$18.62 / CWT
  2. Base Linehaul = 12 CWT × \$18.62 = \$223.44
  3. Fuel Surcharge (20%) = \$223.44 × 0.20 = \$44.69
  4. Accessorials (Liftgate) = \$75.00
  5. Total Freight Cost = \$223.44 + \$44.69 + \$75.00 = \$343.13
Result: The total commercial freight cost is \$343.13, equivalent to \$0.29 per pound or \$28.59 per hundredweight.

How to Use This Calculator

  1. 1Enter total shipment weight in pounds (the calculator converts to hundredweight CWT).
  2. 2Specify your NMFC freight class (default 70 for general freight).
  3. 3Input the transit distance in miles and carrier base CWT rate.
  4. 4Add applicable accessorial fees like liftgate, notification, or inside delivery.

Assumptions & Limitations

  • CWT represents standard US hundredweight equal to exactly 100 pounds.
  • Distance scaling follows standard logarithmic freight rate curve characteristics.

Frequently Asked Questions

What is CWT in freight shipping?

CWT stands for hundredweight, a standard unit of measurement in North American freight equal to 100 pounds. Freight carriers quote rates as dollars per hundredweight (e.g. \$18.50/CWT).

How does freight class affect shipping costs?

Lower freight classes (Class 50 to 70) apply to dense, sturdy cargo and have the lowest freight rates. Higher classes (Class 200 to 500) represent light, bulky, or fragile items that consume trailer cube and cost significantly more per pound.

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