Simply enter in the desired width, length, and concrete thickness. This totals .11 cubic yards. If your project requires more concrete, multiple trucks will be necessary. While some projects require more compact concrete, others require more diluted concrete. Your ready mix supplier is invaluable for checking your view of job conditions, checking your margin of safety, identifying issues you may not have thought of, and informing you of any local conditions you need to be aware of. Your IP: 163.172.227.14 Step #2: Now, it’s time to … Concrete Contractors: Get Job LeadsFind out how Concrete Network is different from other lead services.

Enter the depth, width and length of your concrete footing to calculate the number of cubic yards and concrete bags needed to complete your project. You may need to download version 2.0 now from the Chrome Web Store.

So, grab a measuring tape and measure both the width and the length. A 20 cubic yard order with 1 cubic yard left over is a good order. Here is why: The driveway is 16' at the top and 12' at the bottom.

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While some projects require more compact concrete, others require more diluted concrete. How To Use The Concrete Calculator Formula, In case your project has a strange area, check out these geometry calculators to help you, an 80 pounds bag yields 0.022 cubic yards. Contact us and view our privacy policy, terms & conditions, and press room, Granite Construction has an excellent base fill calculator, Determine how thick you want the concrete, Measure the length and width that you’d like to cover, Multiply the length by the width to determine square footage, Convert the thickness from inches to feet, Multiply the thickness in feet by the square footage to determine cubic feet, Convert cubic feet to cubic yards by multiplying by .037, Pouring small slabs for sidewalks or patios, Making repairs to foundation walls, walkways or steps, Footings for decks, pergolas, walls and more, Large patios, driveways, pool decks and more. This 12" x 12" footing needs to be calculated 12" x 16" so the footing is figured to go above grade to reach the 4" slab thickness.

... For concrete, the formula for volume is as follows: length x width x thickness.

Formulas to Calculate Concrete. • You can also estimate the quantity of sand and gravel required by weight; Simply multiply the volumetric quantity of sand and gravel with 1400 kg/m 3 (bulk density of sand) and 1600 kg/m 3 (bulk density of stone) respectively, when calculating in metric units.

The next step in order to know how much concrete do I need is to determine the square footage. This series of concrete calculators has been developed to help you plan your project.

Ultimately, you need to use concrete. This was supposed to be a 12"*12" footing, but note how the left side of the footing has collapsed.

Then, when you want to find out how many concrete bags you need to order, all you need to do is to divide the total cubic yards bu the yield. Use the slab calculator to figure the concrete needed for the porch surface. Odd shapes: Transform odd shapes into rectangles and odd shapes are suddenly easy to figure. Use this to figure how much material you need for the subgrade.

A perfectly placed order of concrete will finish the job with a small amount left over. Include a margin of safety. This free concrete calculator estimates the amount of concrete necessary for a project, and can account for different shapes and amounts of concrete.

However, realize you are doing your job a service by ordering enough concrete - which means you are going to have a little concrete left. Figure depths and widths as they have been built on the site, not simply what the plans say. In order to calculate it, you just need to multiply the length by the width of the driveway. How To Calculate How Many Pavers You Need, How To Get The Best Ready Mix Concrete Price, Concrete Calculator for Estimating Yards&Bags for a Slab&Footing, Inch Fraction Calculator for Finding Inch Fractions From Decimal & Metric Measurements, best online calculators you can use for free, determine the square feet of your project. Increase this to six inches to better handle heavy loads. The following formulas can be used to estimate the material needed for various shapes. Performance & security by Cloudflare, Please complete the security check to access. This is easily done by multiplying the cubic feet by 0.037. Now, you need to know the cubic feet.

In case your project has a strange area, check out these geometry calculators to help you determine the square feet of your project. You’ll also need additional equipment for mixing the concrete.

concrete calculator formula: (length x width x depth) divided by 27 =# of cubic yards example: 18 feet long, 18 feet wide, 6 inches deep this would be: (18 x 18 x .5)/27 = 6 cu.yards Here’s what the math looks like for a 10’ by 10’ concrete patio: Essentially you are solving for volume and then converting to cubic yards.

Many ready mix companies will have a minimum order of 1 yard, and will charge shortage fees when ordering partial batches.