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Concrete Calculator for Footings - Imperial Measurements

Calculate the amount of concrete needed for pouring footings.

Footings Concrete Volume Calculator

Formula's used:

length * width * depth = V

Example calculation:
length of footings  = 120'
width = 20"
depth of  = 6"
To be able to do the multiplication all units have to be the same. Convert all inch values into foot values
20" = 1' - 8" --- convert 8" into a foot values ---8 ÷ 12 = 0.666 feet
20" then becomes 1.666 feet
convert 6" into a foot value - dividing by 12 --- 6 ÷ 12 = 0.5 feet

the calculation then is 120 * 1.666 * 0.5 = 99.96 cubic feet
You will need 100 cubic feet of concrete for the footings

To convert cubic feet to cubic yards multiply cubic feet * 0.037037037037037
To convert cubic feet to cubic metres multiply cubic feet * 0.028316846592
To convert cubic yards to cubic metres multiply cubic yards * 0.764554857984

Concrete Footings

Length of Footings ft in
Width in
Depth of Footings in
     
Perimeter of Footings ft
Amount of Concrete Needed in:
Cubic Feet ft ³
Cubic Yards yd ³
Cubic Metres

Calculation

  1. enter the length of the footings in feet and inches
  2. the width in inches
  3. depth of footings in inches

Results

  1. perimeter of footings (for forming)
  2. amount of concrete needed in cubic feet
  3. concrete needed in cubic yards
  4. concrete needed in cubic metres

When Ordering Concrete

This concrete calculator will help you in estimating the amount of concrete needed for your project. The amount given as needed, does not include any waste. It is recommended, depending on the job you are doing, to add anywhere from an extra 4% to 10% to your concrete order to make sure you have enough concrete to finish the job. Ask when ordering the concrete. They will be able to give you a good idea of what is needed.


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