Bags ⇄ tonnes converter for feed quantities
Convert feed bag counts to metric tonnes and vice versa for 25 kg, 50 kg and bulk bags. Formula, worked examples and links to species feed calculators.
Short answer · reviewed August 2026
To convert feed bags to metric tonnes, multiply the number of bags by the bag weight in kilograms and divide by 1,000. For example, 40 × 50 kg bags = 2,000 kg = 2 tonnes. To convert tonnes to bags, divide the tonnes by the bag weight in kg and multiply by 1,000: 5 tonnes ÷ 50 kg = 100 bags.
Convert now
Total feed quantity
2 tonnes
Bags needed
100 bags
Common bag weights: 25 kg, 40 kg, 50 kg, 500 kg and 1,000 kg bulk bags. Use net product weight, excluding pallet.
Results are unit conversions only — always confirm the analytical basis stated on the supplier certificate of analysis.
Formula
Tonnes = (Bags × Bag weight kg) ÷ 1,000 Bags = (Tonnes × 1,000) ÷ Bag weight kg 1 tonne = 1,000 kg
Bag weights vary by region and product. Always confirm whether the bag is 25 kg, 40 kg, 50 kg or a 1-tonne bulk bag before ordering transport or storage.
Worked examples
| Input | Calculation | Result |
|---|---|---|
| 40 bags of 50 kg broiler feed | 40 × 50 ÷ 1,000 | 2.0 tonnes |
| 120 bags of 25 kg layer concentrate | 120 × 25 ÷ 1,000 | 3.0 tonnes |
| 5 tonnes of dairy feed in 50 kg bags | 5 × 1,000 ÷ 50 | 100 bags |
| 8 × 1,000 kg bulk bags of swine feed | 8 × 1,000 ÷ 1,000 | 8 tonnes |
FAQ
How many 50 kg bags are in 1 tonne?
Twenty. 1,000 kg ÷ 50 kg per bag = 20 bags. For 25 kg bags, the count is 40 per tonne.
How do I convert 25 kg bags to tonnes?
Multiply the number of bags by 25 and divide by 1,000. Eighty 25 kg bags equal 2,000 kg, or 2 tonnes.
What is a bulk bag or big bag in feed?
A flexible intermediate bulk container (FIBC) commonly holds 500 kg or 1,000 kg of feed, premix or ingredient. Count it as the stated net weight, not the pallet weight.
Does bag weight include the pallet weight?
No. The net product weight is bag count × bag weight. Pallet and stretch-wrap weight is part of gross shipment weight and must be added separately for freight calculations.