Quantity Calculator

Concrete Mixes

The calculator will indicate the estimated number of 25 kg or 30 kg bags of Quikrete® Concrete Mix needed to build a 3″, 4″ or 6″ slab (with a typical waste factor). Yields are approximate and will vary based upon placement methods, equipment utilized and do not include allowance for uneven subgrade, waste, etc.

Enter Number of Square Feet Desired:

Either: Sq Feet Or: Length (Feet)

Width (Feet)

For 3" (7.6 cm) thick 25 kg 30 kg 25 kg 30 kg
# bags # bags
For 4" (10 cm) thick
# bags # bags
For 6" (15 cm) thick
# bags # bags
SONOTUBE
# of bags required per: 25 kg 30 kg 25 kg 30 kg
8" x 4' tube 3.2 2.7 8" x 8' tube 6.5 5.4
10" x 4' tube 5.1 4.2 10" x 8' tube 10.1 8.5
12" x 4' tube 7.3 6.1 12" x 8' tube 14.6 12.2
Bag estimates are rounded up
PSI 6000 / Crack Resistant Concrete Mix
The calculator will indicate the estimated number of 25 kg bags of Quikrete® 6000 or Quikrete® Crack Resistant Concrete Mix needed to build a 3", 4" or 6" slab (with a typical waste factor). Yields are approximate and will vary based upon placement methods, equipment utilized and do not include allowance for uneven subgrade, waste, etc.
SLABS
Enter the size of the slab you want to build:
Either: Or:
Sq Feet Length (Feet)
Width (Feet)
For 3" (7.6 cm) thick 25 kg 25 kg
# bags # bags
For 4" (10 cm) thick
# bags # bags
For 6" (15 cm) thick
# bags # bags
Bag estimates are rounded up