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## Slabs, Square Footing or Walls

### Formula and Image for square shaped concrete block: Square Slab - Concrete Block

Formula using measurements in feet:

Volume in Cubic Feet (ft3) = Width x Length x Thickness / Height

Conversion in other common units:

Volume in Cubic Yards (yd3) = Volume in Cubic Feet (ft3) / 27
Volume in Cubic Meters (m3) = Volume in Cubic Feet (ft3) x 0.0283

## Hole, Column or Round Footing

### Formula and Image for round shaped concrete block: Round slab

Formula using measurements in feet

Area of the Circle (ft2) = Pi x (Diameter/2)^2
Volume in Cubic Feet (ft3) = Depth x Area

Conversion in other common units:

Volume in Cubic Yards (yd3) = Volume in Cubic Feet (ft3) / 27
Volume in Cubic Meters (m3) = Volume in Cubic Feet (ft3) x 0.0283

Pi = 3.14

## Curb and Gutters

### Formula and Image for footer: Curb

Formula using measurements in feet:

Volume in Cubic Feet (ft3) = Thickness x Length x Height

Conversion in other common units:

Volume in Cubic Yards (yd3) = Volume in Cubic Feet (ft3) / 27
Volume in Cubic Meters (m3) = Volume in Cubic Feet (ft3) x 0.0283

## Square Column

### Formula and Image for square column: Square Column

Formula using measurements in feet:

Volume in Cubic Feet (ft3) = Width x Length x Height

Conversion in other common units:

Volume in Cubic Yards (yd3) = Volume in Cubic Feet (ft3) / 27
Volume in Cubic Meters (m3) = Volume in Cubic Feet (ft3) x 0.0283

## Stairs

### Formula and Image for stairs: Stairs

Formula using measurements in feet:

Number of Stairs is the total number of stairs and include the platform.

The platform and each step are each sections.

Volume in Cubic Feet Under Platform =
Platform Depth x (Rise Height x Number of Stairs) x Width

Number of Stairs stairs start from the bottom step but do not include the platform.

Volume in Cubic Feet Under Each Step =
Run Depth x (Rise Height x Step Number) x Width

Total concrete you will need is:

Volume in Cubic Feet = Volume in Cubic Feet Under Platform + Volume in Cubic Feet Under Stairs

Conversion in other common units:

Volume in Cubic Yards (yd3) = Volume in Cubic Feet (ft3) / 27
Volume in Cubic Meters (m3) = Volume in Cubic Feet (ft3) x 0.0283

## Understanding the Concrete Calculator

To understand how concrete calculator works we must first begin with the definition of volume. Volume is the space / area that a substance occupies in this case it’s concrete.

Each calculator depending on the shape of area, may require different inputs to calculate the volume of concrete required to fill the shape. The require inputs can be entered in US units (inches or feet) or metric units (centimeters or meters).

The calculator also provides the option to calculate cost of the material required to fill the shape.

### Where do you need it in daily life?

To determine whether you are going to need the ready mix or bags of the material you may need to calculate the volume required. It helps you reduce the cost in case you need small amount and ready mix from a company is not required. Because ordering ready mix from most companies requires minimum quantity e.g 1 Yard which may be more than the requirement of your project.

You will also be able to decide number of bags of concrete to place a order.

### Who uses concrete calculator?

From professional constructor to DIY Enthusiast, anyone who is working on a project that requires the quantity of concrete to be determined.

# Concrete Calculator: Estimate The Volume Or Weight On Any Given Area

If you are continuously wondering and asking yourself “How much concrete do I need?” – you have landed on the right page.

Our concrete calculator lets you estimate the volume or weight of concrete on any given area. With it, you can precisely calculate concrete volumes for slabs, footers, steps, walls, gutters, curbs and walls.

You can benefit and get an accurate cubic yards value of the amount of concrete that you need to make your custom structure. All you need is to enter two values – quantity and price – and calculate the total volume and cost of materials when entering the price per cubic foot, price per cubic yard or price per cubic meter.

### What is Concrete?

Most of the people think that concrete and cement are the same things. They think that these are the different names of a single material. Well, this is not true. In fact, cement is the ingredient in the concrete creation procedure.

So, here we are going to describe that what actually concrete is and how is it made:

#### Introduction

Concrete is a mixture of aggregates and paste. The paste is obtained by combining cement and the water in a proper proportion which depends upon the thickness of the paste. When the mixture is coated with the small and large aggregates and then it completely dries, then it obtains a form or solid rock, which is basically called concrete. Concrete is used to solidify the structure of any building during the construction process. They are used according to the need of solidification of the building. Sometimes if it is used in an excessive amount, then it also offers difficulty in the constriction process.

Since concrete is a mixture of different compounds, so it is made by combining some of the materials together in a perfect proportion. The perfect proportion of the material is the key to make concrete durable and long lasting.

First of all, the paste is prepared to form a perfect mixture. If the paste is not enough inside the mixture to fill up the void between aggregates, then it will be difficult to make a solid concrete material. If there is the perfect measure of paste inside the mixture, then it will easy to place and produce a smooth surface.

When all the ingredients like water, cement, and aggregates are mixed perfectly, then the solution is left for some time to get dry. During the drying process, the mixture or solution starts to harden and each node expands and grows until it links up with the other adjacent node. When it completely hydrates, a solid concrete material is obtained which long lasts for a couple of years.

### How Does The Concrete Calculator Work?

Let’s give an example to illustrate how our concrete calculator works.

The best way to calculate how much concrete you will need in cubic yards is to do the following:

• Mark your area that needs concrete and divide it into smaller areas.
• Calculate the volume of your area after determining its shape (see the examples below) by multiplying it with the thickness of the concrete.
• Convert the volume from feet to cubic yards to get a precise number of concrete that you need – in cubic yards.

NOTE: As you probably know, foundation walls and stem walls need different calculations. Since they are thicker, they require more concrete to stay strong against a whole house – which is something you should definitely consider.

Example

You have 50 round concrete form tubes, cement tubes or any other tubes you need to fill. Each of them is 4 feet in height and 10 inches in width (which is its diameter). Shortly, what you have is 4’ x 10” tubes.

Now, you need to:

1. Choose the Round Column (or Round Slab) on the concrete calculator.
2. Enter the Height of 4 feet (or 48 inches).
3. Enter the Diameter of 10 inches.
4. Calculate and get an answer of 0.08 cubic yards for one concrete tube.
5. Multiply the answer by 50 of concrete for 50 tubes (0.08 x 50).
6. The calculation that you get is the volume of your tubes only and does not account for any overflow or loss at the bottom of your tubes.

We hope the example above clearly showed you how to use a concrete calculator and get to the values that are important to you or your custom project.

### Calculate Concrete Volumes Of Round Slabs, Square Slabs, Footers, Steps, Curbs, Gutters & Square Columns.

The concrete calculator can be used to estimate the total volume of concrete that you need for your project. Once you are ready to buy the material, it can help you find the amount of concrete you need based on your project.

As you can see, there are different formulas for different project types. As such, we have:

• A concrete calculator for square slab projects.
• A concrete calculator for round slab projects.
• A concrete calculator for wall.
• A concrete calculator for footer.
• A concrete calculator for curb and gutters.
• A concrete calculator for round columns.
• A concrete calculator for stairs columns.

### Calculating Your Concrete Needs: Which Type Of Concrete To Choose From?

The first step in the process of calculation is to determine what kind of concrete you need. As you probably know, there are many kinds of concrete out there. And while mixed concrete can be complex (strong or not) modern or regular concrete is a mixed design using sand and other materials that can withstand pressure.

There is also a concrete type that is known as high or ultra-high performance which means that it can take a lot of hits. Then, there are cellular, cork, roller-compacted, glass and asphalt types of concrete as well as endless possibilities to choose from.

### How Much Material You Need For Your Concrete Project?

As soon as you pick the material, you need to figure out how much concrete you need for your concrete project. Obviously, this is where our concrete calculator can help you – precisely estimating you the amount in cubic yards (one cubic yard equals to 27 cubic feet).

For large concrete jobs (of 4 cubic yards or more), the concrete calculator can help you see the amount which needs to be delivered by a ready-mix truck.

For small to medium jobs, we advise you to mix your own concrete in a concrete mixer – or purchase sacks of ready-mix that only require water. In any case, the best way to calculate how much concrete you need is by using our concrete calculator.

### Ready Mix Vs. Bagged Concrete: Which To Choose?

Now that you used the concrete calculator to estimate how much concrete you need for your project, you should decide if you need a ready-mix concrete or a bagged solution.

The truth is, larger jobs such as driveways are often easier to complete when ordering concrete by the yard instead of mixing it bag after bag manually. Smaller jobs, however, can give you an estimate on the number of concrete bags you need.

Ideally, bagged concrete is great for sidewalks, patios, posts for fences/mailboxes, repairs to foundation walls, walkways, steps, small curbs, ramps, decks, pergolas, walls and more.

On the other hand, ready-mixed concrete is great for large patios, driveways, pool decks, foundation slabs, parking lots, commercial sidewalks and similar projects.

### Start Calculating Your Concrete Needs Today!

We hope that the tips above helped you with your concrete estimation process.

Now that you know how to estimate how much concrete you need, it’s time to turn the theory to practice and enter your values in the charts found on this page.

For the best results, you can consult with a concrete specialist and get the most precise calculation – from start to finish!