QuickFreight Density Calc is a free, lightweight web utility designed to help shippers, freight brokers, and warehouse teams instantly calculate LTL (Less-Than-Truckload). Calculating freight class accurately is critical to avoiding costly carrier re-classifications and billing surprises. Built with speed and simplicity in mind, this tool allows you to plug in your shipment's weight and dimensions to get immediate results without bloated interfaces, sign-ups, or slow load times.