Free Tool
Freight Density Calculator
Calculate your shipment density in pounds per cubic foot (PCF). Density is the primary factor in LTL freight classification and directly affects your shipping cost.
How to use: Enter your shipment length, width, height, and weight. The calculator returns density in pounds per cubic foot (PCF) and maps it to the corresponding LTL freight class.
How freight density is calculated
Freight density measures how much weight occupies a given volume. The formula is straightforward: multiply the length, width, and height of your shipment in inches to get cubic inches. Divide by 1,728 to convert to cubic feet. Then divide the total weight in pounds by the cubic feet. The result is your density in pounds per cubic foot (PCF).
For multi-piece shipments, multiply the cubic inches of a single piece by the number of pieces before converting to cubic feet. The weight used should be the total weight of all pieces combined.
Why density matters for freight shipping
Density is the primary factor in LTL freight classification. The NMFC system assigns freight classes from 50 to 500 based on density ranges. Higher density freight gets a lower class number and a lower rate. Lower density freight — things that are light but take up a lot of space — gets a higher class and costs more to ship.
Carriers care about density because truck space is limited. A shipment that weighs very little but takes up half a trailer costs the carrier opportunity — they cannot fill that space with other revenue. Density-based pricing compensates for that inefficiency.
Warp prices by pallet, not by density
Warp eliminates the density calculation from the shipping process entirely. Instead of determining PCF, looking up a freight class, and then getting a rate that may change after carrier inspection, Warp gives you a per-pallet price upfront. The rate is all-inclusive with no fuel surcharges, no accessorial fees, and no reclassification risk.
Freight density FAQ
How do you calculate freight density?
Freight density is calculated by dividing the total weight of the shipment (in pounds) by its total cubic footage. To get cubic footage: multiply length x width x height in inches, then divide by 1,728. The result is expressed in pounds per cubic foot (PCF).
Why does freight density matter?
Freight density determines how efficiently space is utilized on a truck. It is the primary factor in LTL freight classification, which directly affects shipping cost. Higher density freight (more weight per cubic foot) gets a lower, cheaper freight class.
What is a good freight density?
For LTL shipping, higher density is better for cost. Freight at 50+ PCF qualifies for Class 50 (cheapest). Most standard palletized freight falls between 10-30 PCF (classes 65-100). Freight below 6 PCF is considered low density and will be classified at higher, more expensive freight classes.
Skip the density math
Warp quotes by pallet with all-inclusive pricing. No density calculations, no freight class lookups, no reclassification surprises.