`V = L*A`

Enter a value for all fields

The Volume of a Footer using the Cross-Section Area calculator computes the volume of concrete in a footer based on the length and cross-section area.

INSTRUCTIONS: Choose units and enter the following:

• (L) Length of Footer
• (A) Footer Cross-section Area  

Concrete Volume (V): The volume is returned in cubic yards and the equivalent in 80lb and 60lb bags.  Note: vCalc provides automatic conversions into many other volume units such as cubic meters and feet.  

The Math / Science

The formula for the volume of a footer based on length and cross-section area is:

V = A ⋅ l

where:

• V = volume of the footer
• A = Cross-section area
• l = length of the footer.

Area (A) is calculated by multiplying the width by the height (or depth in this case).  To compute the cross-section area,CLICK HERE.  

---

Foundations - Footers - Piers 

• Blocks in a Foundation: Computes the number of blocks needed for a foundation based on the dimensions of the foundation and the size of the blocks with a standard size mortar joint.
• Concrete in a Poured Foundation: Computes the volume of concrete, the square feet of the forms and the number of 4'x8's needed for the forms.
• Concrete in a Wall: Computes the volume of concrete in a wall based on the dimensions.
• Concrete in a Footer: Computes the volume of concrete for a footer based on the length, width and depth of the footer.
• Concrete in a Footer (Cross Section): Computes the volume of concrete for a footer based on the length and cross-section area of a footer
• Concrete in a Pier: Computes the volume of concrete in a circular pier based on the radius and depth of the pier.
• Piers for a Building: Computes the number of piers and volume of concrete need for the piers of a building (e.g., pole barn) base on the building dimensions, pier spacing, diameter and depth.
• Concrete around Circular Post: Computes the volume of concrete around a number of round posts in a round hole based on the size of the hole and dimensions of the post. 
• Concrete around Square Post: Computes the volume of concrete around a number of square post (e.g., 6x6) in round hole based on the dimensions of the post, depth and width of the round hole.
• Water Needed for Concrete: Computes the water volume needed to mix concrete.
• Price of Bulk Concrete: Computes the price of bulk concrete including delivery based on mileage and on-site pumping cost.