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Concrete Calculator for 10x10 Slab (4" Depth)

For a 10' x 10' slab with 4" depth, you need 1.23 cubic yards of ready-mix concrete.

Concrete Slab Estimator

Calculate cubic yards, cubic feet, and 60lb/80lb premixed bags.

Cubic Yards
1.23 yd³
Cubic Feet
33.3 ft³
Premix Bags
~56 80lb / ~75 60lb

Step-by-Step Worked Explanation

Volume = 10 x 10 x (4/12) = 33.3 cubic feet. Cubic Yards = 33.3 / 27 = 1.23 yards. 80lb Bags = 56 bags.
Mathematical FormulaLaTeX Standard
\text{Cubic Yards} = \frac{L \times W \times D}{27}

Explanation: Length (ft) times Width (ft) times Depth (ft) divided by 27 cubic feet per cubic yard.

Frequently Asked Questions

How many 80lb bags for a 10x10 slab?

You will need approximately 56 bags of 80lb premixed concrete.

Need a different variation or custom calculation?

Open the full interactive Concrete Calculator tool.

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