Concrete Calculator

Concrete Volume
Calculate for: 

Depth = 
Length = 
Width = 
Quantity =  
Price per Cubic
Cubic Yards =


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Area to Calculate: Slab Square

slab square area for cubic yards of concrete calculation

Calculator Use

Calculate volumes for concrete slabs, walls, footers, columns, steps, curbs and gutters.  Enter dimensions in US units (inches or feet) or metric units (centimeters or meters) of your concrete structure to get the cubic yards value of the amount of concrete you will need to make this structure. Also enter quantity and price to calculate total volume and cost of materials when you enter the price per cubic foot, price per cubic yard or price per cubic meter.

For example, let's say you have 50 round concrete form tubes, sonic tubes, Sonotubes or cement tubes that you need to fill.  They have 4 feet height and 10 inches width (diameter), or 4' x 10".

  • Choose Round Column (or Round Slab) on the calculator
  • Enter Height 4 ft (or 48 in)
  • Enter Diameter 10 in
  • Calculate and the answer is 0.08 cubic yards for one concrete tube
  • Multiply 0.08 x 50 = 4 total cubic yards of concrete for 50 tubes.
  • Note that this calculation is the volume of your tubes and does not account for any overflow or loss at the bottom of your tubes
Concrete Volume Formulas and Images for Different Concrete Forms
Square
Slab
square area Using measurements in feet:

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

Volume in Cubic Yards (yd3) = Volume in Cubic Feet (ft3) / 27
Volume in Cubic Meters (m3) = Volume in Cubic Feet (ft3) x 0.0283
Round
Slab
rectangle area Using measurements in feet:

Area of the Circle (ft2) = Pi x (Diameter/2)^2

Volume in Cubic Feet (ft3) = Depth x Area

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
Wall rectangle area Using measurements in feet:

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

Volume in Cubic Yards (yd3) = Volume in Cubic Feet (ft3) / 27
Volume in Cubic Meters (m3) = Volume in Cubic Feet (ft3) x 0.0283
Footer circle area Using measurements in feet:

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

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
annulus area Using measurements in feet:

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

Volume in Cubic Yards (yd3) = Volume in Cubic Feet (ft3) / 27
Volume in Cubic Meters (m3) = Volume in Cubic Feet (ft3) x 0.0283
Round
Column
annulus area Using measurements in feet:

Area of the Circle (ft2) = Pi x (Diameter/2)^2

Volume in Cubic Feet (ft3) = Height x Area

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
Steps triangle area Using measurements in feet:

Number of Steps is the total number of steps including the platform.

We calculate the volume in sections from the ground to the top of each section.   The platform and each step are each sections. 

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

Counting steps starting at the bottom step and not including the platform we'll have Step Number 1, Step Number 2, Step Number 3, etc.

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

Total up the step volumes then the total concrete you need is
Volume in Cubic Feet = Volume in Cubic Feet Under Platform + Volume in Cubic Feet Under Steps

Volume in Cubic Yards (yd3) = Volume in Cubic Feet (ft3) / 27
Volume in Cubic Meters (m3) = Volume in Cubic Feet (ft3) x 0.0283
Curbs &
Gutters
triangle area Using measurements in feet:

We calculate the volume in sections from the ground to the top of each section.  The Curb and Gutter are each a section. 

Volume in Cubic Feet Under Curb =
Curb Depth x (Curb Height + Flag Thickness) x Length

Volume in Cubic Feet Under Gutter =
Gutter Width x Flag Thickness x Length

Volume in Cubic Feet = Volume in Cubic Feet Under Curb + Volume in Cubic Feet Under Gutter

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

Cite this content, page or calculator as:

Furey, Edward "Concrete Calculator" From http://www.CalculatorSoup.com - Online Calculator Resource.