Calculateur de Sacs de Béton Gratuit
Calculez le nombre de sacs de béton prémélangé nécessaires. Compatible avec les sacs de 80 lb, 60 lb et 40 lb.
Bags Needed
56
Bags Needed vs Length
Formule
## How to Calculate Concrete Bags Needed ### Formula **Bags = Total Cubic Feet / Coverage per Bag** | Bag Size | Yield (cu ft) | |----------|---------------| | 80 lb | 0.60 cu ft | | 60 lb | 0.45 cu ft | | 40 lb | 0.30 cu ft | For small projects under 1 cubic yard, bagged concrete is more practical. For larger projects, order ready-mix from a concrete plant.
Exemple Résolu
A 10 ft by 10 ft slab, 4 inches thick, using 80 lb bags.
- 01Depth in feet: 4 / 12 = 0.333 ft
- 02Volume = 10 × 10 × 0.333 = 33.33 cu ft
- 03Cubic yards = 33.33 / 27 = 1.23 cu yd
- 04Bags (80 lb) = 33.33 / 0.60 = 55.6 → 56 bags
Questions Fréquentes
How many 80 lb bags of concrete in a cubic yard?
There are 27 cubic feet in a cubic yard. Each 80 lb bag yields 0.60 cubic feet. So 27 / 0.60 = 45 bags per cubic yard.
Should I use bags or ready-mix concrete?
For projects under 1 cubic yard, bags are practical. Over 1-2 cubic yards, ready-mix delivered by truck is more cost-effective and produces better results.
How much water do I add to an 80 lb bag?
Approximately 3 quarts (about 6 pints) of water per 80 lb bag. Follow the manufacturer's instructions on the bag for best results.
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