Cubic Feet Volume Calculator for Shipping
If you aren't already using a cubic feet calculator for shipping, you may be struggling to estimate costs accurately. Without the right measurements, planning shipments and quoting customers becomes guesswork.
On this page, you'll find a cubic feet calculator you can use to measure the volume of any shipment. By the time you finish reading, you'll know exactly how to calculate cubic feet for shipping and which situations make it most important.
Need pallet measurements before calculating shipment volume? See our standard pallet size chart for common US, Euro, and ISO pallet dimensions.
What Does CUFT Mean in Shipping?
CUFT, or cubic feet, refers to the amount of space your item or shipment occupies on a truck. It incorporates three key measurements: length, width, and height.
Knowing the CUFT of your shipment matters because volume directly affects shipping cost. Whether you use LTL or FTL, carriers use cubic volume to assess how efficiently your freight uses trailer space, and that assessment influences what you pay.
How to Calculate Cubic Feet for Shipping
The formula is the same basic volume equation used in any context: length times width times height. The result in cubic inches is then divided by 1,728 to convert to cubic feet.
Step-by-Step
Step 1 — Measure each dimension
Measure the length, width, and height of the packaged item in inches. Always measure the packaging, not just the item inside.
Step 2 — Multiply the three dimensions
Length × Width × Height = Cubic Inches. Example: 48" × 40" × 48" = 92,160 cubic inches.
Step 3 — Divide by 1,728
92,160 ÷ 1,728 = 53.33 cubic feet.
Step 4 — Multiply by quantity
If shipping multiple identical pieces, multiply the per-piece cubic feet by the quantity.
Quick Reference
| Pallet Size | Height | Cubic Feet |
| 48" × 40" | 48" | 53.3 ft³ |
| 48" × 40" | 60" | 66.7 ft³ |
| 48" × 48" | 48" | 64.0 ft³ |
| 48" × 48" | 72" | 96.0 ft³ |
How to Use the FreightRun Cubic Feet Calculator
Enter the dimensions of each piece of freight, then add rows for additional items. The calculator totals your cubic feet automatically. Always measure after packaging is complete.
- Enter the length, width, and height of each piece in inches
- Use the quantity field for multiple identical pieces
- Click "+ Add Item" to add a second freight type with different dimensions
- Round up to the nearest whole inch — if a skid measures 24.1", enter 25"
- For round items, square them out: a rod 60" tall with a 33" diameter is entered as 60 × 33 × 33
For the most accurate estimate, always measure the packaged item rather than the product alone. Even a small difference in packaging dimensions can change your cubic feet total.
Cubic Feet vs Linear Feet vs Density
These three measurements are all used in freight pricing, but they measure different things and matter in different situations.
| Measure | What It Tracks | When It Matters |
| Cubic Feet | Total volume (L × W × H) | Density class, volume LTL pricing |
| Linear Feet | Trailer floor length used | LTL space billing, linear foot rule |
| Density (PCF) | Weight per cubic foot | Freight class determination |
Understanding all three helps you anticipate how a carrier will price your shipment before it ever reaches the dock.
Why Cubic Feet Matter for LTL Shipping
Many LTL carriers apply a cubic capacity rule to low-density shipments. If your freight occupies a large volume but weighs relatively little, the carrier may charge based on a minimum density rather than actual weight.
This is common for shipments like:
- Pillows, foam, and lightweight packaging
- Empty containers or retail displays
- Oversized but light industrial parts
- Furniture and décor items
Knowing your cubic feet in advance lets you anticipate whether a carrier's cubic capacity rule will apply, and whether consolidating or repackaging freight could reduce costs.
For more details on how carriers apply this, see the FreightRun blog post on Cubic Capacity and Density Minimum Charges.
Common Cubic Feet Calculation Mistakes
Measuring the product instead of the packaging
The carrier charges based on the packaged dimensions. Always measure after wrapping, boxing, or palletizing.
Rounding down instead of up
Always round up to the nearest whole inch. 47.2" becomes 48", not 47".
Forgetting to multiply by a quantity
The cubic feet per piece must be multiplied by the number of identical pieces in the shipment.
Using the wrong unit
Carrier systems work in cubic feet, not cubic inches. Divide your cubic inch result by 1,728.
Frequently Asked Questions
How do I calculate cubic feet for a pallet?
Multiply the pallet length × width × height in inches, then divide by 1,728. For example, a 48 × 40 × 48-inch pallet equals 53.3 cubic feet.
What is the cubic capacity rule?
Some LTL carriers apply a minimum weight per cubic foot when a shipment is large in volume but light in weight. This prevents undercharging for bulky, low-density freight.
Do I measure in inches or feet?
Measure in inches, then divide the result by 1,728 to convert to cubic feet. Most carrier systems and calculators expect cubic feet as the final unit.
What's the difference between cubic feet and freight class?
Freight class is determined by density (weight per cubic foot), along with stowability, handling, and liability. Cubic feet is just the volume — density takes weight into account as well.
Should I round up my measurements?
Yes. Always round up to the nearest whole inch for each dimension before calculating. Carriers do the same, so rounding down can lead to billing adjustments.
Can I use the cubic feet calculator for multiple freight types?
Yes. Use "+ Add Item" to add rows for each unique piece size. The calculator totals all rows automatically.
Related Freight Tools
- Linear Feet Calculator
- Freight Density Calculator
- Freight Class Guide
- Standard Pallet Sizes Guide
- NMFC Lookup Tool
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