Calculate cargo volume, freight class, pallet loading, dimensional weight, and reorder point — free, in your browser, no account required.
Page verified • Last updated: August 2026
NumCalcX has 5 shipping and inventory calculators for the math behind moving and stocking freight — cargo volume, billable shipping weight, pallet loading, and when to reorder stock. Every calculator below runs entirely client-side: nothing you type is sent to a server, and there's nothing to sign up for. Click any calculator to jump straight in.
Find billable shipping weight from package dimensions using common carrier divisors, and compare to actual weight.
→Calculate cargo volume in cubic meters from length, width, and height, for one item or multiple.
→Estimate a shipment's NMFC freight class from its density, using the commonly published density-to-class reference table.
→Calculate how many boxes fit on a standard pallet, by layer and total.
→Calculate the inventory level that should trigger a new order, from daily demand, lead time, and safety stock.
→Yes. Every calculator on NumCalcX runs entirely in your browser — no sign-up, no account, and no data sent to a server.
Use the Dimensional Weight Calculator — it compares actual weight to dimensional (volumetric) weight and shows which one a carrier will bill.
No — these are commonly cited reference values. Exact freight classes and DIM divisors vary by carrier, service level, and change over time, so always confirm with your specific carrier before relying on them for cost estimates.