Fractional Yards to Bags Chart
This chart converts a volume in cubic yards into bags of concrete mix, for the four common bag sizes, using the yields printed on the bags. Counts are rounded up to whole bags.
Bags for each volume
| Cubic yards | Cubic feet | 80 lb | 60 lb | 50 lb | 40 lb |
|---|---|---|---|---|---|
| ¼ yd³ | 6.75 | 12 | 15 | 18 | 23 |
| ½ yd³ | 13.50 | 23 | 30 | 36 | 45 |
| ¾ yd³ | 20.25 | 34 | 45 | 54 | 68 |
| 1 yd³ | 27.00 | 45 | 60 | 72 | 90 |
| 1½ yd³ | 40.50 | 68 | 90 | 108 | 135 |
| 2 yd³ | 54.00 | 90 | 120 | 144 | 180 |
| 2½ yd³ | 67.50 | 113 | 150 | 180 | 225 |
| 3 yd³ | 81.00 | 135 | 180 | 216 | 270 |
| 4 yd³ | 108.00 | 180 | 240 | 288 | 360 |
| 5 yd³ | 135.00 | 225 | 300 | 360 | 450 |
The yields are 0.60 ft³ for an 80 lb bag, 0.45 for a 60 lb bag, 0.375 for a 50 lb bag and 0.30 for a 40 lb bag, as listed by QUIKRETE. The figures are rounded up, so add waste on top of them.
Small volumes in cubic feet
| Volume (ft³) | 80 lb | 60 lb | 50 lb | 40 lb |
|---|---|---|---|---|
| 1 | 2 | 3 | 3 | 4 |
| 2 | 4 | 5 | 6 | 7 |
| 3 | 5 | 7 | 8 | 10 |
| 5 | 9 | 12 | 14 | 17 |
| 8 | 14 | 18 | 22 | 27 |
| 10 | 17 | 23 | 27 | 34 |
| 15 | 25 | 34 | 40 | 50 |
| 20 | 34 | 45 | 54 | 67 |
This table is for post holes, repairs and small pads. For fence posts use the post hole calculator.
Cubic yards to cubic meters
| yd³ | ft³ | m³ |
|---|---|---|
| 0.25 | 6.75 | 0.191 |
| 0.5 | 13.50 | 0.382 |
| 0.75 | 20.25 | 0.573 |
| 1 | 27.00 | 0.765 |
| 1.5 | 40.50 | 1.147 |
| 2 | 54.00 | 1.529 |
| 2.5 | 67.50 | 1.911 |
| 3 | 81.00 | 2.294 |
| 4 | 108.00 | 3.058 |
| 5 | 135.00 | 3.823 |
Reading the chart
- Pick the row closest to your order volume after waste.
- Choose the bag size you will use. The 80 lb bag makes the most concrete per trip.
- For volumes of 1 yd³ and more, compare with a truck. See bagged vs ready-mix.
- Yields differ by brand. Read the bag or edit the yield in the calculator.
Frequently asked questions
How many bags of concrete in half a yard?
23 bags of 80 lb mix, 30 bags of 60 lb mix.
How many bags in a quarter yard?
12 bags of 80 lb mix.
How many bags in 2 yards?
90 bags of 80 lb mix.
How many bags in 5 yards?
225 bags of 80 lb mix.
Does the chart include waste?
No. Add 5 to 10%.
What yield does the chart use?
QUIKRETE yields: 0.60, 0.45, 0.375 and 0.30 ft³ for 80, 60, 50 and 40 lb bags.
Sources
Estimate only. Results depend on the numbers you enter, ground conditions and your supplier. For structural work consult a licensed engineer and follow local codes. Brand names such as Quikrete and Sakrete are used only to cite published product data. This site is not affiliated with any brand.