Estimate LTL freight costs, freight class, and charge breakdown in seconds
Less-than-truckload (LTL) freight shipping is one of the most common methods for moving goods that don't fill an entire trailer. When your shipment weighs between 150 and 15,000 pounds, LTL lets you share trailer space with other shippers, paying only for the portion of the truck you use. However, pricing LTL freight is notoriously complex — it depends on your shipment's weight, dimensions, freight class, origin and destination, fuel surcharges, and any special services you require at pickup or delivery. This LTL Freight Calculator takes the complexity out of the process. Enter your shipment dimensions and weight, and the tool automatically calculates the density, determines the correct NMFC freight class from the full 18-class table, estimates your base freight charge using a per-hundredweight (CWT) rate, applies a fuel surcharge, and adds any accessorial fees you select. You get a complete, itemized cost estimate in seconds — without calling a carrier or waiting for a quote. Understanding your freight class before shipping is critical. The National Motor Freight Classification (NMFC) system assigns one of 18 classes — ranging from Class 50 (cheapest, densest goods) to Class 500 (most expensive, least dense) — to every commodity. Carriers use your declared freight class to price your shipment. If you declare the wrong class and the carrier's freight inspector reclassifies it, you can face a penalty surcharge of 20–30% on top of the corrected rate. This calculator auto-calculates the correct class from density, helping you avoid costly reclassification surprises. The tool supports multi-pallet shipments. You can add multiple item rows, each with its own dimensions, weight, and quantity. The total volume and average density are computed across all items, giving you a combined freight class for the whole shipment. This mirrors how carriers assess mixed-commodity shipments. Beyond the base freight charge, LTL shipments often incur accessorial fees for non-standard services: liftgate service when there is no loading dock, residential pickup or delivery, limited access locations like churches or farms, inside delivery, or scheduled delivery appointments. This calculator includes all common accessorial charges with typical flat-fee estimates so you can budget accurately. Fuel surcharges are another variable cost in LTL freight. Carriers publish weekly fuel surcharge tables tied to diesel fuel prices. A typical industry FSC runs 20–25% of the base freight charge. You can adjust the fuel surcharge percentage in this calculator to match current carrier rates or your contract terms. When planning a shipment, small changes in how you pack your freight can shift you into a lower (cheaper) freight class. A denser shipment costs less per pound to ship. This calculator includes an optimization tip that tells you exactly how many more pounds you need to add — or how to repack — to drop your shipment into the next lower class. Side-by-side scenario comparison lets you evaluate two packing options at once before you commit. Whether you are a small business owner shipping occasional pallets, a logistics coordinator managing regular freight lanes, or a warehouse manager optimizing outbound costs, this LTL Freight Calculator gives you professional-grade estimates without needing an account or a carrier relationship. All calculations are performed locally in your browser — your shipment details stay private.
Understanding LTL Freight Pricing
What Is LTL Freight?
Less-than-truckload (LTL) freight refers to shipments that are too large for parcel carriers like UPS or FedEx Ground, but not large enough to justify renting an entire trailer. LTL shipments typically weigh between 150 and 15,000 pounds. Multiple shippers' freight is consolidated onto a single trailer, and each shipper pays only for the space their freight occupies. LTL carriers include major national carriers like Old Dominion, XPO Logistics, Estes Express, and R+L Carriers, as well as regional specialists. LTL is distinguished from full truckload (FTL or TL) shipping, where a single shipper pays for the entire trailer regardless of how full it is. LTL is the right choice when cost efficiency matters more than speed or exclusive trailer use.
How Is LTL Freight Cost Calculated?
LTL freight pricing is based on several factors working together. First, the freight class (NMFC class) is determined from the shipment's density: Volume (ft³) = Length × Width × Height ÷ 1,728; Density (lbs/ft³) = Weight ÷ Volume. The density is then matched against the 18-class NMFC table to assign a class from 50 to 500. The base freight charge is then calculated per hundredweight (CWT): Base Cost = (Weight ÷ 100) × CWT Rate × Class Multiplier. Class 70 is the standard reference at 1.0×; Class 50 is 0.70×; Class 500 is 6.30×. On top of the base charge, a fuel surcharge (typically 20–25% of base) is added, followed by any accessorial charges for special services like liftgates, residential delivery, or appointment scheduling.
Why Does Freight Class Matter So Much?
Freight class is the single biggest driver of LTL cost. A shipment classified as Class 500 can cost six times as much per pound as the same weight at Class 50. Misclassifying your freight — even accidentally — has real consequences: if a carrier's inspector weighs and measures your freight and determines it belongs in a higher class than declared, they will reclassify it and apply a deficit charge, often adding 20–30% to your bill. Understanding density-based class determination lets you pack smarter. A dense, compact shipment ships in a lower class than loosely packed freight of the same weight. Proper crating, palletization, and dimensional optimization can significantly reduce freight class and therefore total shipping cost.
Limitations of This Estimate
This calculator provides estimates based on typical industry rates and standard NMFC density-based classification. Actual carrier quotes will differ because LTL rates also depend on negotiated tariffs, lane-specific pricing, volume discounts, pickup and delivery area density, and current fuel surcharge indices. The accessorial fees shown are typical industry averages; actual fees vary by carrier and service agreement. Freight class based purely on density is an estimate — NMFC classification also considers stowability, handling difficulty, and liability, which can override density-based class for certain commodities. Always obtain actual carrier quotes for final pricing. This tool is best used for budgeting, optimization analysis, and understanding the relative impact of different shipping decisions.
How to Use the LTL Freight Calculator
Enter Shipment Dimensions and Weight
Add one or more shipment items with length, width, height (in inches), weight (in lbs), and quantity. Use the pallet preset buttons to auto-fill standard pallet sizes (48×40 Standard or 48×48 EUR). Toggle to metric if needed.
Review Auto-Calculated Freight Class
The calculator automatically computes your shipment's density and looks it up in the full 18-class NMFC table to determine your freight class. If you know your NMFC class, you can override it using the manual dropdown.
Set Rate per CWT, Fuel Surcharge, and Accessorials
Enter the base rate your carrier charges per hundredweight (typical range: $15–$50/CWT). Adjust the fuel surcharge percentage (typically 20–25%). Check any accessorial services you need: liftgate, residential, inside delivery, appointment, hazmat, etc.
Review Cost Breakdown and Optimization Tips
See your full itemized estimate: base charge, fuel surcharge, accessorial fees, discount, and total. The optimization tip tells you how to reduce your freight class. Use Export CSV or Print to save results for your records or carrier negotiations.
Frequently Asked Questions
What is an LTL freight class and how is it determined?
LTL freight class is a standardized rating system established by the National Motor Freight Traffic Association (NMFTA) through its National Motor Freight Classification (NMFC) system. There are 18 classes ranging from 50 to 500, primarily determined by shipment density — calculated as weight divided by volume in cubic feet. Higher density generally means a lower (cheaper) class. For example, Class 50 applies to very dense goods like steel or bricks (50+ lbs/ft³), while Class 500 applies to extremely light goods like ping pong balls (under 1 lb/ft³). The NMFC also considers stowability, handling difficulty, and liability for certain commodities, which can override pure density-based classification.
What is CWT (hundredweight) pricing in LTL freight?
CWT stands for hundredweight, meaning per 100 pounds. LTL carriers quote their base rates as a dollar amount per CWT for each freight class. For example, a carrier might charge $25.00 per CWT for Class 70 freight. If your shipment weighs 500 lbs at Class 70, the base freight charge would be (500 ÷ 100) × $25.00 = $125.00. Different freight classes carry different multipliers relative to a reference class. Class 50 might be 0.70× (cheaper), while Class 500 might be 6.30× (much more expensive). The actual CWT rate you receive depends on your carrier, lane, volume, and negotiated tariff — the rates in this calculator are illustrative estimates.
What is a fuel surcharge (FSC) and how is it calculated?
The LTL fuel surcharge (FSC) is a variable fee that carriers add to the base freight charge to offset diesel fuel costs. It is expressed as a percentage of the base freight charge and fluctuates weekly based on national fuel price indices, typically the Department of Energy (DOE) weekly diesel price report. Industry FSC rates have historically ranged from around 10% to over 30%, with a typical range of 20–25% in recent years. Your final fuel surcharge = Base Freight Charge × (FSC% ÷ 100). Carriers publish their current FSC tables on their websites. For negotiated contract rates, the FSC may be capped or calculated differently.
What are accessorial charges and which ones are most common?
Accessorial charges are fees for non-standard pickup or delivery services beyond a standard dock-to-dock transfer between commercial locations with loading docks. The most common accessorials are: liftgate service (a hydraulic platform on the truck for locations without a dock, typically $75–$150); residential delivery or pickup (non-commercial address, typically $50–$100); limited access locations like churches, schools, prisons, or farms (typically $50–$100); inside delivery where the driver carries freight beyond the threshold (typically $50–$100); delivery appointment scheduling (typically $25–$75); and hazmat handling (typically $75–$200). Always confirm which accessorials apply to your shipment before booking — omitting them from your quote can lead to billing surprises.
What is reclassification and how can I avoid it?
Reclassification occurs when a carrier's inspector re-weighs and re-measures your freight and determines it belongs in a higher freight class than you declared. The carrier then charges you the difference plus a penalty, which can add 20–30% or more to your bill. To avoid reclassification: use accurate dimensions (measure at the widest point); don't round down weight; understand that your commodity's NMFC classification may differ from density-based estimates (some items have specific NMFC codes); and consider getting a binding freight class determination from NMFTA's ClassIT tool for high-value or recurring shipments. The 2025 NMFC update (effective July 19, 2025) also changed classification rules for some commodity categories.
How can I reduce my LTL freight class to lower shipping costs?
Reducing freight class is primarily about increasing density — more weight per cubic foot. Practical strategies include: packing goods more tightly to reduce void space; using smaller boxes or crates that fit your items snugly; stacking items on pallets to maximize height within the class threshold; removing unnecessary packaging; considering packaging redesign if shipping the same item regularly; and requesting that your carrier place freight on a smaller pallet. Even small changes can push a shipment from Class 150 to Class 125 or Class 100, significantly cutting your per-pound rate. The optimization tip in this calculator tells you the exact additional weight needed to drop to the next lower class.