Quikrete Calculators: Get Concrete Answers and More

Quikrete Calculators: Get Concrete Answers and More

Quikrete’s calculators eliminate any guesswork when purchasing building materials for home projects. (Photo provided by Quikrete)

Concrete is a cornerstone element for any home project.

For many homes, it’s literally the foundation upon which they are built. Concrete is also a key ingredient of hardscape elements to enhance your backyard; it provides a solid entrance with driveways and walkways; and it securely sets posts for fences or mailboxes.  

Here’s how Quikrete’s calculators do the math for you and make home improvement projects easier.


For concrete slabs, big or small, Quikrete’s concrete calculator tells you the precise amount you’ll need.
For concrete slabs, big or small, Quikrete’s concrete calculator tells you the precise amount you’ll need.

Concrete Slabs

Whether you need a slab for a concrete driveway or shed foundation, Quikrete’s concrete calculator tells you how many bags of mix you’ll need to get the job done — eliminating any worry of being short a bag or buying too many. 

First, choose the desired product — popular options include Quikrete’s Concrete Mix (for larger slabs) and Fast-Setting Concrete Mix in the red bag (for smaller slabs). 

The calculator determines the amount you need for a 4-inch or 6-inch slab. Just enter your slab’s square footage and it will tell you how many 40-, 50-, 60- or 80-pound bags you’ll need. 


Don’t end up shorthanded when setting fence posts! Quikrete’s concrete calculator ensures you’ll have enough Fast-Setting Concrete Mix to get the job done.
Don’t end up shorthanded when setting fence posts! Quikrete’s concrete calculator ensures you’ll have enough Fast-Setting Concrete Mix to get the job done.

Posts and Mailboxes

Installing a mailbox or fence? Quikrete Fast-Setting Concrete Mix makes setting your posts fast and easy. 

Calculate how many bags you’ll need here. All you need to do is enter the depth of the hole. The calculator will generate the number of bags you need for various post and hole diameters. 


Use Quikrete’s concrete crack sealant calculator to ensure you’ll have enough sealant to fill every crack and gap. 
Use Quikrete’s concrete crack sealant calculator to ensure you’ll have enough sealant to fill every crack and gap. 

Cracked Concrete

Over time, cracks and crevices will creep up on your concrete. To maintain your concrete surface’s structural integrity and prevent additional damage, repair those cracks with a concrete crack sealant.

Use Quikrete Concrete Repair or Quikrete Advanced Polymer Concrete Crack Sealant for a flexible, elastic bond. 

Simply enter the approximate length of the crack you will be repairing in feet, and Quikrete’s Concrete Crack Sealant Calculator will tell you how many 10.1-ounce tubes you will need for your project.


When building a paver patio, don’t end up short on sand. Quikrete’s paver sand calculator tells you how many bags you’ll need to fill every square inch.
When building a paver patio, don’t end up short on sand. Quikrete’s paver sand calculator tells you how many bags you’ll need to fill every square inch.

Paver Patios

Laying a paver patio? Quikrete has a calculator to determine exactly how many bags of paver sand you’ll need.

Just enter the size of the area you need to cover in square feet. The calculator will tell you how many bags you will need to cover the area at a 1/8-inch, 1/4-inch, 3/8-inch 1/2-inch, 3/4-inch, 1-inch or 2-inch depth.

Once you have your pavers in place, you’ll need to secure them with some polymeric jointing sand. You guessed it — Quikrete also has a calculator for that.


Quikrete’s mortar mix calculator gives you the peace of mind to know you’ll have enough mortar to build a brick wall in one go.
Quikrete’s mortar mix calculator gives you the peace of mind to know you’ll have enough mortar to build a brick wall in one go.

Mortar Mix 

Mortar is the glue that holds bricks together. Whether you’re building a retaining wall or a privacy concrete block wall for your garden, you’ll need some.

And Quikrete has a mortar mix calculator to tell you how much you’ll need. Just enter the number of bricks or concrete blocks you plan to use for your project.

The calculator will tell you the number of 60-pound or 80-pound bags of Quikrete Mortar Mix you need to construct your project with a ⅜-inch mortar joint.


filling toy buckets with sand in a children's sandbox
Building a backyard playground for your child? Quikrete has a calculator to tell you how many bags of sand you’ll need to fill a sandbox. (pixelshot)

Other Material Calculators


Still have a question after you’ve calculated how much material you need? Quikrete has a live chat function on its calculator webpage, so you can talk one-on-one with an expert, ensuring your project will be completed to perfection.


Further Reading