FIBC Bags Required & Order Cost Calculator
Calculate how many FIBC big bags a product batch needs, round up to complete bags, add spare bags and estimate the bag-and-liner purchasing cost.
Use a saved product specification (optional)
Enter your values
First time using this calculator?
Replace the example values with figures from your supplier sheet or measurements. Choose the unit beside each value. Results update as you type; fix any highlighted field before using the result.
GSM means grams per square metre. Net weight excludes the core and other packaging. MOQ means the minimum order quantity. An optional field can stay blank unless the result you need depends on it.
Prices keep the selected currency; changing its label does not convert an exchange rate. Save or export the result after checking your inputs.
Help with freight for bag purchase
Enter the transport charge for the same shipment or order represented by the other fields. Use 0 only when the supplier has confirmed that freight is included.
Unit label only. No currency conversion.
Bags needed for the product batch
The entered fill must already be approved for the bag and operation.
Spare bags are purchased but not filled in this batch. Freight is the bag purchase freight, not freight for the packed product.
Filled bags = ceil(batch mass ÷ planned fill); purchase = filled bags + spares; cost = purchase × (bag + liner) + freight
ceil(15,000 ÷ 750) = 20; purchase 22 bags; total 248Saved calculations stay in this browser. No account or cloud backup is created.
Save to a product project (optional)
Choose or create a saved product project ↗This is an illustrative example. Saved or transferred values must be checked against your job.
Calculated from your inputs. Confirm specifications with your supplier.
How sensitive is this result to your assumptions?
Vary one input and inspect bags needed for the product batch
All other entered inputs stay fixed. Ranges are your scenarios, not statistical confidence or supplier performance predictions. This uses the same validated calculator engine.
The formula, made clear.
Divide the product batch mass by the planned fill that has already been approved for the bag and operation. Round up because a fractional final bag still requires a complete purchased bag. Spare bags increase the purchasing quantity without increasing the product mass of this batch. Add separately priced liners and freight for delivery of the empty packaging, then allocate the purchase total over the actual batch tonnes. This keeps the full-order purchase cost distinct from the recurring component cost of one filled bag.
How to use this calculator
- 01
Enter total product batch mass and approved planned product fill per bag.
- 02
Add the number of spare empty bags to purchase.
- 03
Enter price per bag, any separately charged liner and freight for the packaging purchase.
- 04
Review filled bag count, purchase quantity, final bag fill and cost per batch tonne.
A calculation you can check
A 15,000 kg batch at 750 kg per bag needs 20 filled bags. Two spare bags bring the purchase to 22. At €8 per bag, €1 per liner and €50 freight, the purchase costs 22 × €9 + €50 = €248, or €16.5333 per batch tonne. For 15,100 kg, 21 filled bags are needed and the last carries 100 kg.
- Product batch mass
- 15000 kg
- Approved planned fill per bag
- 750 kg
- Additional spare bags
- 2 bags
- Price per FIBC
- 8 EUR
- Separate liner price per bag
- 1 EUR
- Freight for bag purchase
- 50 EUR
ceil(15,000 ÷ 750) = 20; purchase 22 bags; total 248Frequently asked questions
Why round the number of big bags up?
A remaining product quantity still needs a complete bag, even when the final bag is only partly filled.
Are spare bags included in cost per tonne?
Yes. Cost per tonne allocates the entire entered packaging purchase, including spares and purchase freight, over the batch product mass.
Check the displayed formula and units against your quotation. Use measured GSM, net weight and actual layout dimensions where available. Default densities are planning assumptions, not certified material properties. Calculated cost does not certify strength, compatibility or safe loading.
Method, units and material assumptions ↗