How many bags of concrete in a yard?

Bags of concrete per cubic yard and per cubic foot for every common bag size, from the manufacturers' own yields.

45 80-lb bags, 60 60-lb bags, 72 50-lb bags or 90 40-lb bags make one cubic yard of concrete.

Need a number for your project? The concrete calculator works out bags for any shape and adds a waste allowance.

Bags per cubic yard (US bags)

One cubic yard is 27 ft³. Divide 27 by the bag's yield, then round up: you can't buy part of a bag. These counts have no allowance for waste.

Bags of concrete per cubic foot and cubic yard, by product
Bag	Product	Yield per bag	Bags per ft³	Bags per yd³ (exact)	Bags to buy per yd³
40 lb	QUIKRETE Concrete Mix (No. 1101)	0.3 ft³	3.33	90	90
40 lb	SAKRETE High-Strength Concrete Mix	0.3 ft³	3.33	90	90
50 lb	QUIKRETE 5000 High Early Strength Concrete Mix (No. 1007)	0.375 ft³	2.67	72	72
50 lb	QUIKRETE Concrete Mix (No. 1101)	0.375 ft³	2.67	72	72
60 lb	QUIKRETE 5000 High Early Strength Concrete Mix (No. 1007)	0.45 ft³	2.22	60	60
60 lb	QUIKRETE Concrete Mix (No. 1101)	0.45 ft³	2.22	60	60
60 lb	SAKRETE High-Strength Concrete Mix	0.45 ft³	2.22	60	60
80 lb	QUIKRETE 5000 High Early Strength Concrete Mix (No. 1007)	0.6 ft³	1.67	45	45
80 lb	QUIKRETE Concrete Mix (No. 1101)	0.6 ft³	1.67	45	45
80 lb	SAKRETE High-Strength Concrete Mix	0.6 ft³	1.67	45	45
90 lb	QUIKRETE Concrete Mix (No. 1101)	0.675 ft³	1.48	40	40
90 lb	SAKRETE High-Strength Concrete Mix	0.66 ft³	1.52	40.91	41

Bags per cubic meter (metric bags)

Yields for metric bags vary by product, so check the bag you're buying. The calculator uses the 9 L figure for 20 kg bags by default, which gives the higher count.

Bags of concrete per cubic meter, by product
Bag	Product	Yield per bag	Bags per m³ (exact)	Bags to buy per m³
20 kg	Australian Builders High Strength Concrete Mix	10 L	100	100
20 kg	Easy Mix Super Strength Concrete	9 L	111.1	112
25 kg	SAKRETE High-Strength Concrete Mix	0.41 ft³	86.1	87
30 kg	QUIKRETE 5000 High Early Strength Concrete Mix (No. 1007)	0.5 ft³	70.6	71
30 kg	SAKRETE High-Strength Concrete Mix	0.5 ft³	70.6	71

Yields as printed on each manufacturer's data sheet, retrieved October 2, 2026. Product names are trademarks of their owners and are listed only to identify the source of each yield.

Don't forget the extra

These counts are for exactly one cubic yard. Real pours lose concrete to uneven ground, form bulges and spills, so buy more. NRMCA suggests ordering 4% to 10% over the measured volume for ready-mix, and the same logic applies to bags. The calculator adds 10% for slabs by default.

Yields assume you add the amount of water on the bag. NRMCA notes that adding too much water can reduce strength and increase cracking, so don't add water to stretch a batch.

Questions people ask

How many 80-lb bags of concrete are in a yard?

45. Each 80-lb bag makes 0.60 ft³ and a cubic yard is 27 ft³, so 27 ÷ 0.60 = 45.

How many 60-lb bags make a yard?

60. A 60-lb bag makes 0.45 ft³, and 27 ÷ 0.45 = 60.

How many 40-lb and 50-lb bags make a yard?

90 40-lb bags (0.30 ft³ each) or 72 50-lb bags (0.375 ft³ each).

How many 20 kg bags make a cubic meter?

It depends on the product. At the 9 L per bag that Easy Mix lists, you need 112. Australian Builders states about 100 bags per cubic meter (10 L per bag): 100. A 30 kg bag that makes 0.50 ft³ (14.2 L) needs 71.

Should I buy exactly that many bags?

No. Add 4% to 10% for waste and uneven ground, as the NRMCA suggests for ready-mix, and round up to a whole bag.

Sources

Australian Builders High Strength Concrete Mix product data sheet (ICL), stated as about 100 bags per cubic metre, retrieved October 2, 2026
Easy Mix Super Strength Concrete technical data sheet, retrieved October 2, 2026
QUIKRETE 5000 High Early Strength Concrete Mix No. 1007 product data sheet, retrieved October 2, 2026
QUIKRETE Concrete Mix No. 1101 product data sheet, retrieved October 2, 2026
SAKRETE High-Strength Concrete Mix technical data sheet, retrieved October 2, 2026
NRMCA, Concrete in Practice 31: Ordering Ready Mixed Concrete, retrieved October 2, 2026

Last updated October 2, 2026. Read how we calculate, including formulas, waste defaults and rounding.