It couldn't be easier: use our online tool to quickly configure your individual terminal box. With just a few clicks, you choose the preferred enclosure material, the desired certification for explosion-hazardous areas and specify the type and quantity of terminals and cable. What is a Packaging Calculator? A packaging calculator helps you determine optimal product arrangement in boxes, calculate the number of cartons needed for shipping, and maximize space utilization. Efficient packaging reduces shipping costs, minimizes warehouse space, and lowers environmental. For full functionality(calculation of enclosure size)of this site it is necessary to enable JavaScript. You. This is the how many boxes can i fit in a box calculator, or short the Box Quantity calculator. Space size How big is the space? 2. MAXIMUM BOX QUANTITY This calculator makes a calculation. Box calculators are specialized online tools designed to help users calculate various attributes of packaging boxes, such as surface area, volume, and compression strength.