How Many Bags of Concrete in a Yard

About How Many Bags of Concrete in a Yard

One cubic yard of concrete takes 45 bags of 80 lb pre mixed concrete or 60 bags of 60 lb mix. The arithmetic behind those numbers is simple: a cubic yard is 27 cubic feet, an 80 lb bag yields about 0.60 cubic feet and a 60 lb bag about 0.45 cubic feet, so 27 divided by 0.60 gives 45 and 27 divided by 0.45 gives 60. In metric terms the same cubic yard is 0.765 m3, which takes about 64 bags of 25 kg mix or 39 bags of 40 kg mix. Those per yard figures are a useful sanity check, but they exclude waste: with a normal 10 percent allowance a genuine cubic yard of finished slab is closer to 50 bags of 80 lb mix. A cubic yard is also a practical decision point, since 45 to 60 bags is roughly the upper limit of what two people can realistically mix and place in a day before the first batches begin to set. Enter your own dimensions above to get the exact count for your project rather than the round number per yard.

How to use How Many Bags of Concrete in a Yard

  1. Choose metric or imperial input
  2. Enter length, width, and depth of your slab
  3. See volume and bag count in both metric and imperial instantly

Frequently Asked Questions

How many 80 lb bags of concrete are in a yard?
Forty five. A cubic yard is 27 cubic feet and an 80 lb bag yields about 0.60 cubic feet, so 27 divided by 0.60 equals 45 bags. With a 10 percent waste allowance, plan on about 50 bags to actually place a full cubic yard.
How many 60 lb bags of concrete are in a yard?
Sixty. A 60 lb bag yields about 0.45 cubic feet, and 27 divided by 0.45 equals 60 bags per cubic yard. With a 10 percent waste allowance, allow around 66 bags.
How many bags of concrete are in a cubic metre?
About 84 bags of 25 kg mix or 50 bags of 40 kg mix, based on yields of 0.012 m3 and 0.020 m3 per bag. A cubic metre is 1.31 cubic yards, so it also equals roughly 59 bags of 80 lb mix.
How much does a cubic yard of concrete weigh?
About 4,000 lb, or roughly 2 short tons. In metric terms concrete weighs approximately 2,400 kg per cubic metre. This matters for access and for whether a floor or structure can carry the finished pour.
Is it worth mixing a full cubic yard from bags?
It is at the outer edge of practical. Forty five to 60 bags is a long day for two people, and every batch must be placed before the previous one sets. At a cubic yard or more, most suppliers will deliver ready mix for less than the bag cost.

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