Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Construction
Concrete Slab Bag Calculator
Find out how many bags of pre-mixed concrete you need to pour a slab. Enter the slab length, width, and thickness, pick your bag size, and add a waste allowance to get the exact bag count for footings, patios, shed bases, and walkways.
Fill in the required fields to see your result.
Construction
Concrete Volume Calculator
Find out exactly how many cubic yards of concrete you need for a slab, footing, or pad. Accounts for thickness and a configurable waste allowance so you never fall short on pour day.
Fill in the required fields to see your result.
Key differences
| Concrete Slab Bag Calculator | Concrete Volume Calculator | |
|---|---|---|
| Category | Construction | Construction |
| Inputs required | 5 | 5 |
| Result | Bags of Concrete Needed (bags) | Concrete Bags Needed (bags) |
| What it does | Find out how many bags of pre-mixed concrete you need to pour a slab. Enter the slab length, width, and thickness, pick your bag size, and add a waste allowance to get the exact bag count for footings, patios, shed bases, and walkways. | Find out exactly how many cubic yards of concrete you need for a slab, footing, or pad. Accounts for thickness and a configurable waste allowance so you never fall short on pour day. |