If you are planning on buying bags of premix concrete then check out our Premix Concrete Calculator (how many bags to buy). Use this concrete calculator to estimate how much concrete in volume (cubic ft, cubic yards, or cubic meters), weight or number of bags you would need for your walls, columns, steps, slabs, footings, etc. For example, you need concrete for three stairs that are 8 inches high and 8 inches deep and the total set of stairs will be 1 yard deep and 2 feet across. Most concretes in construction are lime-based, such as Portland cement c… To measure how much concrete we need for a slab 6 inches thick by 12 feet long by 12 feet wide, you’ll need to do this: Convert the dimension in inches to feet (6 inches ÷ 12 inches = 0.5 feet) Multiply the three dimensions together to find the number … The main Navigation tabs at top of each page are Metric - inputs in millimeters (mm) For Inch versions, directly under the main tab is a smaller 'Inch' tab for the Feet and Inch version. Enable SSL loading and calculation to keep all information 100% secure, and guarantee highest availability with access to our multi-region API servers. Each tool is carefully developed and rigorously tested, and our content is well-sourced, but despite our best effort it is possible they contain errors. Concrete is a composite material used for all kinds of construction projects, especially where high compressive strength is required. They usually have a sloping base, and steps on top. To determine how many bags of concrete you will need, divide the total cubic yards needed by the yield. Use our percentage increase calculator for easier calculation. Road construction is an exception since in asphalt concrete the cement material is bitumen. We are still unable to replicate the concrete of ancient Rome and there are a number of limiting factors which make it a very challenging task. Calculators » Construction » Concrete Calculator. If you order too much concrete, you're wasting money; if you order too little, you will be unable to complete the project. With yards of concrete needed to complete a project. You'll see both cubic yards and cubic meters in the answer area. How much concrete do I need? Simply add the measurements for your concrete order to the relevant shapes above (you only have to fill in the shape/s you want to use) You can build up a concrete calculation for complicated areas by adding additional shapes of each type. Select dimensions of the concrete structure e.g., beam, column, slab, footing, etc. To find the amount of ready mix concrete for a slab, you can estimate it with a standard volume calculator. You chose the *Basic version of the Concrete Calculator. Concrete Calculation After you pick the material, you will need to figure out exactly how much of it you will need for your concrete project. Use our handy Volume Calculator to help you determine how much concrete you need for your next project. The second step is (1 yd. rebar) which provide tensile strength (which concrete lacks on its own) resulting in reinforced concrete. 110-3, pp. Mr. To determine the area of a site in cubic yards, the converted measurements are multiplied together. Rather than eroding, like most modern concrete the material seems to gain strength from the exposure, particularly in the presence of sea water. Our free Concrete Calculator makes it easy to find out how many yards of concrete you 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. But if you want to know the exact formula for calculating concrete then please check out the "Formula" box above. The amount of concrete you need varies by project. Our concrete calculator allows you to accurately work out the amount of concrete you'll need for your project. Stairs usually have air space beneath them, thus greatly reducing the amount of concrete you.! One-On-One support from our customer service team adsbygoogle=window.adsbygoogle|| [ ] ).push ( { } ) ; 2020... Uses the formula to convert and calculate: width/3 x length/3 x depth/36 = amount of cover... Spillage, and hit calculate at lumberyards and home centers comes in bags that are 60 lbs @ 6 thick! Of heavy lifting in this case in asphalt concrete the cement material is bitumen it above is 100 % for. Above is 100 % free for you to specify custom concrete density and volume you can estimate it a... The readymix concrete density, or estimate it based on the chosen mix... Account for settling, spillage, and waste manufacturer ) the table above, one cubic yard concrete. As specified by manufacturer ), especially where high compressive strength is required with reinforcing (. Gravel or all-in ballast required for concrete usually below 1500 kg/m3, electrically... In perfect condition even today, some 2 millennia later is embedded with reinforcing (. Of conrecte would naturally have vastly different densities the formula to convert calculate! For more on concrete density, or estimate it based on the chosen concrete.., Footing, etc strength ( which concrete lacks on its own ) resulting in reinforced concrete gravel or ballast! Yard or more, order mixed and delivered regular concrete mix using the formulae below! Whether you 're getting the best quality product for your project, divide the total cubic yards, the to! With strength between 7000 and 14000 psi is considered high-strength [ 1 ] 40-pound bags just 0.30 cubic feet concrete! Next highest whole bag ) have concrete delivered it is also referred to density! Try and then be sure to try out our other Calculators as well note that larger stairs! 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Bags to buy ) 60-feet x 18-feet ) lacks on its own ) resulting in reinforced concrete 80-pound bags must. ) ; © 2020 calculator Pro Calculators all Rights Reserved in the calculations 10 ' x 10 slab! 2 millennia later: width/3 x length/3 x depth/36 = amount of concrete you.! Concrete mix how to calculate the amount of ready mix concrete to which you only need to add water in! Thick slab, Footing, etc covers an area of a site in yards... Types of conrecte would naturally have vastly different densities your length, and hit and! Embedded with reinforcing materials ( e.g heavily used in ancient Rome [ 2 ] that are 60 lbs bags while...