Cement Yardage Calculator

Last updated: 28 Oct 2025 | Author: Brij | Review By: Irshad

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Easily calculate how much concrete you need with this Cement Yardage Calculator. Enter length, width, and depth to find total cubic yards and cement bags required for your project.

Length:

Width:

Depth / Thickness:

Cement Calculation Results

Volume:

cu ft

Volume in Cubic Yards:

cu yd

Estimated Cement Bags Required:

bags

When planning any concrete project—whether it’s a driveway, foundation, or patio—knowing the cement yardage is essential. This Cement Yardage Calculator helps you determine how much concrete (in cubic yards) you’ll need based on the dimensions of your project.

Formula to Calculate Cement Volume

To find out how much concrete you need, first calculate the volume of the slab or area in cubic feet or cubic meters.

Formula 1: Volume (Cubic Feet)

$\text{Volume (ft³)} = \text{Length (ft)} \times \text{Width (ft)} \times \text{Depth (ft)}$

Formula 2: Convert Cubic Feet to Cubic Yards

Since 1 cubic yard = 27 cubic feet, convert the total volume into cubic yards using:

$\text{Volume (yd³)} = \frac{\text{Volume (ft³)}}{27}$

Formula 3: Estimate Cement Bags Required

If you’re using 94 lb cement bags, one bag typically covers 0.022 cubic yards of concrete mix.

$\text{Bags Required} = \frac{\text{Total Volume (yd³)}}{0.022}$

Example Calculation

Let’s calculate for a concrete slab with:

Length: 12 ft
Width: 10 ft
Depth: 6 inches (0.5 ft)

Step 1: Find Volume in Cubic Feet

$\text{Volume} = 12 \times 10 \times 0.5 = 60 \, \text{ft³}$

Step 2: Convert to Cubic Yards

$\text{Volume (yd³)} = \frac{60}{27} \approx 2.22 \, \text{yd³}$

Step 3: Calculate Bags Required

$\text{Bags Required} = \frac{2.22}{0.022} = 101$

Result:

Total Concrete Volume = 2.22 cubic yards
Cement Bags Required = ≈ 101 bags

FAQs

1. What is a cubic yard of cement?

A cubic yard equals 27 cubic feet of material and is the standard unit for measuring concrete volume in construction.

2. How many 94 lb bags of cement make one cubic yard?

It takes around 45 bags of 94 lb cement to make one cubic yard of concrete.

3. How do I convert cubic feet to cubic yards?

Divide the total cubic feet by 27 to get cubic yards.

4. Why do I need extra cement?

It’s recommended to add 5–10% extra cement for waste, spillage, and uneven ground.

5. Can this calculator be used for footings and driveways?

Yes, this calculator works for slabs, footings, driveways, sidewalks, and other concrete projects.

Check out 1 Similar Calculators:

Cement Yardage Calculator

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