Yes. All calculators are free with no signup. Math runs in your browser.

Is the freight class exact?

No. We estimate class from density (PCF) using common carrier-style charts. NMFC commodity codes plus handling, stowability, and liability can change the class. Always confirm with your carrier or broker.

What DIM divisor should I use?

UPS and FedEx domestic often use 139. USPS Priority Mail commonly uses 166. DHL Express frequently uses 139. Your contract may differ — pick Custom to enter another divisor.

How does FreightKit make money?

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FreightKit — Free Freight Class, DIM & CBM Calculators

Ship smarter. Measure once.

No-signup tools for LTL shippers, ecom ops, and warehouse teams: density-based freight class, dimensional weight, CBM, billable weight, and pallet fit. Instant results on mobile. Assumptions dated and disclaimed.

Freight class calculator

Density → NMFC-style class

Enter pallet or carton L×W×H and weight to get cubic feet, pounds per cubic foot (PCF), and an estimated LTL freight class.

Dimensional weight calculator

UPS · FedEx · USPS · DHL

Compute DIM weight with carrier divisors (139 / 166). See billable weight vs actual so skinny boxes stop surprising you.

Billable weight calculator

Actual vs DIM side-by-side

Compare actual weight to dimensional weight and highlight which one carriers will bill.

CBM & cubic feet calculator

Multi-carton volume

Add carton lines in cm, in, or m. Get total CBM and cubic feet for ocean, air, and warehouse planning.

Pallet count calculator

Fit pieces on a pallet

Estimate pieces per layer, layers, units per pallet, and how many pallets you need for a shipment.

Why these tools?

Wrong freight class and surprise DIM weight are two of the most expensive “gotchas” in parcel and LTL shipping. FreightKit gives you the same density and divisor math carriers use — before you print a BOL or buy a label.

LTL density class — cubic feet → PCF → estimated class 50–400
Parcel DIM — UPS / FedEx 139, USPS 166, DHL 139, or custom
Volume — multi-line CBM and cubic feet for containers and air freight
Pallet planning — pieces per layer and pallets needed

FAQ

Is FreightKit free? Do I need an account?

Yes — all calculators are free with no signup. Results run in your browser.

Is freight class from density always correct?

No. Density is the primary factor for many commodities, but NMFC item rules plus handling, stowability, and liability can assign a different class. Carriers may reweigh and remeasure.

What is billable weight?

Carriers charge on the greater of actual weight and dimensional (volumetric) weight. Our billable and DIM tools show both so you can redesign packaging.

How do you make money?

Ad placeholders are reserved for Google AdSense after approval. See Privacy.