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CONCRETE CALCULATOR - How Much Do I Need?

You can use this concrete calculator to help you determine the number of bags of QUIKRETE® Concrete Mix, Mortar Mix, or Fast-Setting Concrete you will need for the following projects. (All calculations are rounded up to the next highest whole bag).

Calculators:

Quantity and/or coverage calculations for all QUIKRETE® products can be found on all Spec Data sheets.

Concrete Mixes

Enter the size of the slab you want to build in square feet.

The calculator will indicate the number of bags you will need to build a 4 inch or 6 inch slab. (all yields are approximate and do not allow for uneven substrate, waste, etc.)

Enter Number of Square Feet Desired:
For a 4" Slab:
Number of 40 lb. bags:

Number of 50 lb. bags:

Number of 60 lb. bags:

Number of 80 lb. Bags:
For a 6" Slab:
Number of 40 lb. Bags:

Number of 50 lb. Bags:

Number of 60 lb. Bags:

Number of 80 lb. Bags:
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Mortar Mix

Enter the number of 8 inch x 2 inch x 4 inch bricks or 8 inch x 8 inch x 16 inch blocks you plan to use for your project.

The calculator will indicate the number of 60 or 80 pound bags of QUIKRETE® Mortar Mix you need to construct your project with a 3/8 inch mortar joint. (All yields are approximate and do not include allowance for uneven subgrade, waste, etc.)

Enter Number of Bricks or Blocks Desired:
For 8 inch x 2 inch x 4 inch Bricks
Number of 60 lb. Bags:

Number of 80 lb. Bags:
For 8 inch x 8 inch x 16 inch Blocks
Number of 60 lb. bags:

Number of 80 lb. Bags:
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DATA SHEET

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Fast-Setting Concrete Mix

Fast-Setting Concrete Mix - 20% More! Enter the approximate depth of the post hole you want to dig in inches.

Remember, the depth of the post hole should be one-half of the above-ground post height. (Example: For a 6 feet above ground post, use a post with an overall height of 9 feet and place 3 feet in the ground). The calculator will indicate the number of 50 lb. bags of QUIKRETE® Fast-Setting Concrete you need.

Enter Hole Depth in inches:

For 2 inch post diameter / 6 inch hole diameter:   

For 3 inch post diameter / 9 inch hole diameter:   

For 4 inch post diameter / 12 inch hole diameter:

For 6 inch post diameter / 18 inch hole diameter:

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Base Coat Stucco & Finish Coat Stucco

Enter the area of your wall in square feet excluding window and door openings.

The calculator will indicate the number of 80 lb bags of QUIKRETE ® Base Coat Stucco and Finish Coat Stucco you will need to construct your stucco wall using a traditional 3 coat or 2 coat application process. (All yields are approximate and do not allow for uneven application thickness, waste, etc.)

Enter Number of Square Feet Desired:

For 3/8 inch Scratch Coat plus 3/8 inch Brown Coat:

Number of 80 lb. Bags:

Finish Coat Stucco at 1/8 inch Thickness:

Number of 80 lb. Bags:

For 1/2 inch Brown Coat Over Masonry or Concrete Wall:

Number of 80 lb. Bags:

Finish Coat Stucco at 1/4 inch Thickness:

Number of 80 lb. Bags:

Project Video

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Veneer Stone Mortar

Enter the area of your wall in square feet, excluding window and door openings.

The calculator will indicate the number of 80 lb. bags of QUIKRETE ® Veneer Stone Mortar you will need to construct your wall, including the scratch coat, bond coat and jointing mortar application. (All yields are approximate and do not allow for uneven application thickness, waste, etc.)

Enter Number of Square Feet Desired:

For 1/2 inch Thick Scratch Coat Plus 1/2 inch Bond Coat:

Number of 80 lb. Bags:

For Grout Joints 1/2 inch Wide:

Number of 80 lb. Bags:

Over 1/2 inch Thick Bond Coat Directly Over Masonry Wall:

Number of 80 lb. Bags:

For Grout Joints 3/4 inch Wide:

Number of 80 lb. Bags:

Grouting calculated for 1 inch x 4 inch x 8 inch stone over a square section, long narrow sections may require 10% more material.
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QUIKWALL ® Surface Bonding Cement

Enter the total area of your wall in square feet and make sure you count all surface areas, including both sides of the block, the top and the ends.

The calculator will indicate the number of 50 lb. bags you will need to coat all sides of your wall with QUIKWALL ® Surface Bonding Cement. (All yields are approximate and do not allow for uneven application thickness, waste, etc.)

Enter Number of Square Feet Desired:

For 1/8 inch Thick Coat:

Number of 50 lb. Bags:

For 1/4 inch Thick Coat:

Number of 50 lb. Bags:

Add one additional bag of QUIKWALL ® for each 15 lineal feet of wall for use as bedding mortar.
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Concrete Crack Sealants

Enter the approximate length of the crack you will be repairing in feet.

The calculator will indicate the number of 10.1 oz. tubes of QUIKRETE ® Polyurethane Concrete Crack Sealant or 10.1 oz tubes of Concrete Repair you will need for your project.

Enter the Length of the Crack in Feet:

For 1/4 inch Wide Joint by 1/4 inch Deep:

Number of 10.1 oz Tubes:

For 1/2 inch Wide Joint by 1/4 inch Deep:

Number of 10.1 oz Tubes:

For 3/8 inch Wide Joint by 3/8 inch Deep:

Number of 10.1 oz Tubes:

For 1/2 inch Wide Joint by 1/2 inch Deep:

Number of 10.1 oz Tubes:

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Mortar Joint Sealants

Enter the approximate length of the mortar joint you will be repairing in feet.

The calculator will indicate the number of 10.1 oz. tubes of QUIKRETE ® Advanced Polymer Mortar Joint Sealant or 10.1 oz tubes of Mortar Repair you will need for your project.

Enter the Length of the Mortar Joint in Feet:

For 3/8 inch Wide Joint by 3/8 inch Deep:

Number of 10.1 oz Tubes:

For 1/2 inch Wide Joint by 1/4 inch Deep:

Number of 10.1 oz Tubes:

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Polymeric Jointing Sands

Enter the number of square feet of pavers on your project.

The calculator will indicate the approximate number of Polymeric Jointing Sand bags you will need for your project. (Based on standard 2 inch x 4 inch x 6 inch pavers. Usage will be different for other paver sizes and for use with natural stone.)

Enter Number of Square Feet of Pavers:

For 1/4 inch Thick Joints:

Number of 50 lb. Bags:

1/2 inch Thick Joints:

Number of 50 lb. Bags:

3/4 inch Thick Joints:

Number of 50 lb. Bags:

1 inch Thick Joints:

Number of 50 lb. Bags:

2 inch Thick Joints:

Number of 50 lb. Bags:

Note: PowerLoc® Jointing Sand is recommended for use only under 1/2 inch.

Calculations based on 2 inch x 4 inch x 8 inch paver applied over a square section, long narrow applications may require 10% more material

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Hardscapes Rocks and Sands

Enter the size of the sand box area in square feet.

The calculator will indicate the number of bags you will need to fill the sand box at a 2", 3", 4", 5" and 6" depth.

Enter the number of square feet desired:

For 2" depth:

Number of 50 lb. Bags:

For 3" depth:

Number of 50 lb. Bags:

For 4" depth:

Number of 50 lb. Bags:

For 5" depth:

Number of 50 lb. Bags:

For 6" depth:

Number of 50 lb. Bags:

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Hardscapes Patio Paver Sand

Enter the size of the area you need to cover in square feet.

The calculator will indicate the number of bags you will need to cover the area at a 1/8", 1/4", 3/8", 1/2", 3/4", 1" and 2" depth.

Enter the number of square feet desired:

For 1/8" depth:

Number of .5 Cubic Foot Bags:

For 1/4" depth:

Number of .5 Cubic Foot Bags:

For 3/8" depth:

Number of .5 Cubic Foot Bags:

For 1/2" depth:

Number of .5 Cubic Foot Bags:

For 3/4" depth:

Number of .5 Cubic Foot Bags:

For 1" depth:

Number of .5 Cubic Foot Bags:

For 2" depth:

Number of .5 Cubic Foot Bags:

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