Free Concrete Calculator

MudMixer Concrete Calculator

Calculate the exact number of bags needed for your slab, footing, or column. Save time, cut waste, and order with confidence.

Concrete Slab Calculator

Imperial
Metric

Enter the depth, width and length of your concrete slab to calculate the number of cubic yards, meters or concrete bags needed to complete your project.

Concrete Slab Diagram

Concrete Footing Calculator

Imperial
Metric

Enter the depth, width and length of your concrete footing to calculate the amount of concrete needed to complete your project.

Concrete Footing Diagram

Concrete Column Calculator

Imperial
Metric

Enter the diameter and height of your concrete column to calculate how much concrete you need for your project.

Concrete Column Diagram

Take Advantage of Our Free Concrete Calculator

Before starting any concrete project, it's important to calculate the number of bags of concrete you'll need. Our concrete calculator can help you determine the quantity of 80 lb bags required for your project, providing an accurate estimate based on the size and thickness of your slab, footing, or column.

Using this tool will save you time and money! If you don't calculate the proper amount of concrete needed, you may end up with too little or too much. Too little, you'll have to make another trip to the store. Too much, you'll spend extra money on materials you don't need.

Our concrete calculator gives you a quick answer for the proper amount and quantity of bags of concrete you need. It's an easy way to save yourself time and money and avoid mistakes.

EXPERT TIP:  Add 5–10% to your estimates for safety!

How to Figure Out How Much Concrete You Need

Accurately calculating how much concrete you need is the foundation of any successful project, whether you're pouring a new driveway, building garage floors, or setting up square footings for a deck. Getting the right estimate helps you avoid costly waste, unexpected delays, and ensures your structure's stability from the ground up.

Slabs, Walls, and Rectangular Footings

To determine the required concrete volume, start by measuring the length, width, and thickness of your slab, wall, or footing in feet. The standard formula for calculating cubic yards of concrete is:

Cubic Yards = Length (ft) × Width (ft) × Thickness (ft) ÷ 27

Round Columns and Footings

If your project involves round footings or columns, you'll need to know the tube outer diameter and hole depth. The formula for a round column or footing is:

Cubic Yards = π × (Radius in ft)² × Depth (ft) ÷ 27

FAQs

Mix Faster. Pour Smarter.

Now that you know how many bags you need — mix them all in a fraction of the time with MudMixer.

Shop MudMixer Evolution