How to Calculate FIBC Bag Volume and Choose the Right Dimensions for Bulk Materials?
Sep 23, 2026
Choosing the size of an FIBC bulk bag is not simply a matter of selecting a 1-ton or 2-ton capacity. The actual bag dimensions need to match the material density, filling volume, handling equipment, storage method, and available shipping space. A bag that is too small can create overfilling and handling problems, while an oversized bag may increase packaging cost and leave unnecessary empty space during transportation.
For procurement teams, packaging engineers, warehouse managers, and distributors, a practical starting point is to calculate the required volume before discussing the final bag construction. The calculation is straightforward, but the assumptions behind it matter.
1. Start With Bulk Density, Not Bag Weight
The most important number is the bulk density of the m...
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