Type your own yield per bag.
⚙️Calculation Parameters
📊Calculated Output
How Custom Concrete Bag Yield Calculator Works?
To use your own bag yield, the Custom Concrete Bag Yield Calculator divides the job volume by the exact yield printed on your bag. The process takes 4 steps.
Read the bag label
Find the yield on the bag, listed in cubic feet (ft³), liters (L) or cubic meters (m³).
Enter the yield
Type the value in any unit. The calculator converts L and m³ to ft³.
Enter the job volume
Type the tube size and count, or a volume.
Read the bag count
The tool divides and rounds up, then shows the count with and without waste.
Custom Concrete Bag Yield Calculator Formula
The Custom Concrete Bag Yield Calculator uses your entered yield in place of a preset.
Bag count
Bags = ⌈V ÷ Y_custom⌉Y_custom is the label yield.
Liters to ft³
Y (ft³) = Y (L) ÷ 28.3168For labels in liters.
m³ to ft³
Y (ft³) = Y (m³) ÷ 0.0283168For labels in cubic meters.
Worked example: 4 tubes at 12 in × 48 in, label yield 14 L
- V = 12.57 ft³
- Y = 14 ÷ 28.3168 = 0.4944 ft³
- Bags = ⌈12.57 ÷ 0.4944⌉ = 26 bags
Custom Concrete Bag Yield Calculator Conversion Table
The custom yield conversion table shows bag counts for 8 yields on a job of 4 tubes at 12 in × 48 in (12.57 ft³, 356 L).
| Bag yield | Exact bags | Bags (rounded) | Bags + 10% waste |
|---|---|---|---|
| 0.300 ft³ (8.5 L) | 41.89 | 42 | 47 |
| 0.330 ft³ (9.3 L) | 38.08 | 39 | 42 |
| 0.375 ft³ (10.6 L) | 33.51 | 34 | 37 |
| 0.400 ft³ (11.3 L) | 31.42 | 32 | 35 |
| 0.450 ft³ (12.7 L) | 27.93 | 28 | 31 |
| 0.500 ft³ (14.2 L) | 25.13 | 26 | 28 |
| 0.600 ft³ (17.0 L) | 20.94 | 21 | 24 |
| 0.670 ft³ (19.0 L) | 18.76 | 19 | 21 |
Yields from 0.30 ft³ to 0.67 ft³ cover most bagged concrete, mortar mix and fast-setting products.
What is Custom Concrete Bag Yield Calculator?
A Custom Concrete Bag Yield Calculator is a bag counter that uses any yield value you enter, instead of the 4 standard yields built into most concrete calculators.
Yields differ between products. High-strength mixes, fiber mixes, fast-setting mixes and regional brands print yields that do not match the 0.60 ft³ standard for an 80 lb bag. Imported and metric bags list yields in liters. The calculator takes the number from the label, so the bag count matches the product in the cart.
A yield error of 0.05 ft³ per bag shifts a 30-bag order by 2 to 3 bags.
What are the uses of Custom Concrete Bag Yield Calculator?
There are 4 main uses of the Custom Concrete Bag Yield Calculator.
Specialty mixes
Builders count bags of high-strength, fiber or rapid-set mixes.
Regional brands
Buyers use the yield of a local brand with no preset.
Metric labels
Users enter liter yields from imported bags.
Yield tests
Crews enter a yield they measured in the field.
🔗Related Sonotube Calculators
View all 106 subtools →Sonotube Bag Count Calculator
Count the bags you need from the bag yield.
Quikrete Sonotube Calculator
Use the yield printed on the Quikrete bag.
Sakrete Sonotube Calculator
Use the yield printed on the Sakrete bag.
40 lb Concrete Bag Calculator
Count the 40 lb bags you need.