CargoTools.online
Free freight calculators built by someone who's actually worked the freight — not a software team guessing at what shippers need.
Why CargoTools exists
Before building this site, I spent five years running freight across US and Canada lanes — coordinating LTL shipments, dealing with carriers, and watching the same expensive mistakes happen over and over. Shippers getting hit with re-classification charges because they guessed their freight class. Forwarders losing time explaining dimensional weight to clients who didn't understand why their bill was higher than expected. Containers going out half-empty because nobody had a quick way to visualize the load.
The tools that existed were either locked behind expensive TMS software, required a signup, or were so clunky they weren't worth using on a busy dock. So I built CargoTools — a clean, fast, free suite of calculators that anyone in the supply chain can use without friction.
Every tool on this site was designed around a real problem I saw in the field. The freight class calculator exists because misclassification fees are one of the most avoidable costs in LTL. The dimensional weight calculator exists because carrier invoices don't explain the math clearly. The 53-foot trailer planner exists because the 12-foot rule catches shippers off guard constantly.
Built for the whole supply chain
CargoTools is used by warehouse managers, freight brokers, freight forwarders, and shippers at every scale — from single-location businesses shipping a few pallets a week to operations coordinating multiple lanes across borders.
A freight forwarder colleague who's been in the industry for years reviewed the tools when the site launched. His take: these are exactly the kind of calculators he wishes his clients had access to — fewer mistakes on the shipper side means fewer headaches on the forwarder side, and happier customers all around.
That validation matters. These aren't tools built to generate ad revenue — they're built because the freight industry runs on thin margins and accurate information, and too much of that information is still locked away or confusing.
Accuracy and methodology
Every calculator uses verified formulas and industry standards:
- ▸Freight class — NMFC density-to-class table, verified against current carrier classification guides
- ▸Dimensional weight — carrier-specific divisors: UPS 139, FedEx 139, USPS 166, DHL 139 for international
- ▸Trailer planner — 102" exterior, 99" usable interior width; 636" (53') usable length
- ▸Container planner — ISO 668 verified internal dimensions for 20' GP, 40' GP, and 40' HC
- ▸Ti Hi calculator — GMA 48×40 pallet standard; 5.5" pallet board height factored into stack calculations
If you spot an error or a formula that needs updating, use the contact page — accuracy matters and corrections are made promptly.