Plan smarter shipments. Compare freight class, dimensional weight, shipping costs, and optimize loads — all free.
Enter dimensions + weight → get NMFC freight class instantly
Compare dim weight across UPS, FedEx, USPS, DHL
Calculate cubic meters and find the right container size
Calculate density to determine freight class
How many boxes fit on a pallet? Optimize loading
Compare LTL, truckload, and parcel costs
Calculate gas cost for any trip
Real industry data — We use the official NMFC freight class density table with all 18 classes, carrier-specific dimensional weight divisors (UPS ÷139, USPS ÷166, FedEx ÷139, DHL ÷139), real container dimensions, and LTL rate structures.
Not just a calculator — ShipSmarter helps you make shipping decisions. Compare parcel vs LTL vs truckload. See What-If scenarios. Get a Shipment Score. Find optimization tips that can save you 20-40% on freight costs.
Free forever — All tools are 100% free. No signup required. No data leaves your browser. Your calculation history stays on your device.