Why Container Loading Calculations Matter
Ocean freight is priced by the container, not by the carton, so maximizing how many cartons fit into a 20ft, 40ft, or 40HQ container directly determines your shipping cost per unit. Underestimate and you pay for a bigger container than you needed, or ship a partial container at a worse rate; overestimate and cartons don't actually fit, forcing a last-minute rebooking. This calculator takes your carton dimensions and quantity and works out exactly how many fit per container, the resulting utilization rate, and the total CBM and weight load — before you commit to a booking.
Standard Container Dimensions Used
The calculator uses standard internal dimensions for each container type: a 20ft container holds roughly 33 CBM, a 40ft holds roughly 67 CBM, and a 40HQ (high-cube) holds roughly 76 CBM, with corresponding maximum payload weights set by carrier and road-weight limits. Because real cartons rarely stack with zero wasted space, the tool also reports a realistic utilization percentage rather than a theoretical maximum, so your actual planning number is closer to what a freight forwarder will tell you.
免费集装箱装箱计算器
输入纸箱尺寸和数量，本工具自动计算 20尺、40尺、40尺高柜集装箱能装下多少箱，并给出空间利用率、总体积（CBM）和总重量，帮助外贸和货代从业者在订舱前提前规划装柜方案，避免订错柜型或装不下的问题。