Freight Class Calculator
Freight Class Calculator

Freight Class Calculator

Use a freight class calculator to determine the right class for your shipment #freight #freightshipment #freightclass #transportation
Use a freight class calculator to determine the right class for your shipment #freight #freightshipment #freightclass #transportation

The first step to quoting any freight shipment is figuring out what freight class your shipment falls into. The easiest way to do that is to use a freight calculator.

All you have to do is put in your measurements and it will tell you what class your freight falls into.

Why Do You Need a Freight Class?

Carriers use the freight class among other information to determine your rate. It is vital that you have an accurate class to ensure your rate is correct. Otherwise you risk a rate adjustment and surprise additional charges.

What Is a Freight Class?

Freight classes are a standardized classification based on the density of the item. Carriers can make more money on small dense items than they can on large light items. Because of this, rates can vary greatly and it is vital your get the correct class.

Do you have a freight shipment you need to quote? Now is your chance to try out a freight calculator so you can get an accurate quote for your freight shipment.

Freight Class Chart

Freight ClassWeight (lbs)Commodities
5050+ Gravel. Sheetrock. Common building bricks. Flour, cornmeal
5535-50 Terrazzo/concrete tiles, bricks, cement, mortar, hardwood flooring.
6030-35 Machinery in crates. School crayons in boxes. Paperback books
6522.5-30 Bottled beverages. Books in boxes. Wood/cement roofing tile
7015-22.5 Metal castings. Car carriers, luggage racks. Food items. Automobile engines
77.513.5-15 Tires. Bathroom fixtures.  T-shirts/clothing >12lbs PCF
8512-13.5 Prepared food. Cotton/synthetic cloth fibre, bales, rolls
92.510.5-12 Electric toothbrushes. Computers, etc (value up to $5/lb). Refrigerators
1009-10.5 Used household goods. Boat/car seat, hood, etc covers. Wine cases, caskets
1108-9Paintings of low value. Cabinets. Framed artwork. Table saws
1257-8Wooden furniture. Small household appliances
1506-7Clothing. Auto sheet metal parts. Computers, etc (value up to $10/lb)
1755-6Fish Tanks, aquariums. Clothing. Couches, stuffed furniture
2004-5Ground/polished optical lenses. Packaged mattresses
2503-4Bamboo furniture. Plasma televisions. Computers, etc (value up to $25/lb)
3002-3Stuffed animals. Wood cabinets, tables, chairs
4001-2Bags of potato chips or popcorn. Deer antlers
500< 1

How to Calculate Freight Class

If you choose to do your calculations by hand, you need to know the four factors that go into figuring out the freight class.


To calculate density you need to know the dimensions and weight of your shipment.

Density = Mass/Volume

As the formula states, divide the total mass by the total volume to find out density.


How easy is your item to move and pack into a truck? The more careful the carrier has to be, the higher your freight class will be.

This could be because your item is extremely heavy, or an odd shape, or cannot have anything stacked on top of it.

Volume= Length x Width x Height


Similar to stowability, any shipment that requires special handling will get a higher freight class.


The carrier doesn’t want to take on any more liability than they have to. Because of this, shipments that increase liability get a higher freight class.

This includes shipments that are hazardous, breakable, or perishable.

How Is Freight Different From Parcel?

Parcel shipping is for smaller items and letters. If a single human can lift and carry it, then you can probably ship it by parcel. If your item is large or over 150 pounds, then it is best to ship it by freight.






Max Weight

70 lbs


150 lbs

150 lbs

Max Length

108 in

108 in

119 in

108 in

Max Length + Girth

130 in

165 in

165 in

165 in

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