For a 5" thick slab, 100 sq. ft. / 65 = 1.54 yards of concrete or 70 (80 lb) bags of concrete For a 6" thick slab, 100 sq. ft. / 52 = 1.92 yards of concrete or 87 (80 lb) bags of concrete For the calculations above, I rounded up to get an even number of bags. tools you need to mix and work with concrete

Using the ACI 211.1 method, here is an abbreviated run-through on how to design a mix: Choose the target slump. Choose the maximum aggregate size—remember that the larger the better for reducing shrinkage and curling. Estimate the water and air content using ACI 211.1 Table 6.3.3. Select the water-cement ratio.

4 . 100 x 0.037 = 3.7 cubic yards The above example is solving for volume in yards. Now we can determine how many bags of cement are needed by using below conversion table: . Followings are the volume of each size bag: *80 pounds bag contains 0.022 cubic yards. * 60 pounds bag contains 0.017 cubic yards. * 40 pounds bag contains 0.011 cubic yards.

Use our free online Premix Concrete Calculator to calculate exactly how many premix concrete bags you should buy for your concrete project. Just enter in the desired height, width, and thickness of your concrete project and then press the calculate button. The free concrete calculator will tell you exactly how many 40 lb, 60 lb, or 80 lb bags ...

This concrete calculator allows you to estimate how much concrete you need based on the cubic feet and cubic yards for a defined area. Additionally, using the three most common sizes of cement bags — 40, 50 and 60 pound — this calculator will help you determine the number of bags you need for your project.

If you are planning on buying bags of premix concrete then check out our Premix Concrete Calculator (how many bags to buy). Give it a try and then be sure to try out our other calculators as well! For size = 6 inch: Cubic Yards to be filled = (L * W * 0.5 / 27); For size = 8 inch: Cubic Yards to be filled = (L * W * 0.67 / 27); For size = 12 inch:

60 bags of concrete mix are required to produce a cubic yard of concrete. It takes about.45 cubic feet of concrete to fill a 60-pound bag (27.2 kg) (12.7L) A yard contains 27 cubic feet of concrete. If you multiply 27 by.45, you get 60 bags of cement. If you use a large or heavy bag, the number of bags in a yard will be different.

6″ thickness requires 1.851 cubic yards of concrete. How many yards of concrete do I need for a 40×60 slab with thickness of 5 inches? For a 40×60 slab, 5 inches thick, you need 37.04 yards of concrete. You can calculate the yardage as previously explained, 40/3 x 60/3 x 5/36 = 37.04 cubic yards.

Following are the formulas to calculate how much concrete you will require for a square or rectangular shaped pour: L (feet) x W (feet) x T (inches) ÷ 12 = cubic feet of concrete (CF) Number of bags of concrete needed: CF ÷ 0.45 = number of 60 lb. bags CF ÷ 0.6 = number of 80 lb. bags Number of cubic yards of concrete needed: CF ÷ 27 = cubic yards

For a 40×60 slab, 5 inches thick, you need 37.04 yards of concrete. You can calculate the yardage as previously explained, 40/3 x 60/3 x 5/36 = 37.04 cubic yards. How many yards of concrete do I need for 800 square feet slab 6 inches deep? For 800 square feet slab, 6 inches thick, you will need exactly 14.81 yards of concrete.

33 x .037 = 1.22 cubic yards. Essentially you are solving for volume and then converting to cubic yards. For concrete, the formula for volume is as follows: length x width x thickness. To determine how many bags of concrete you will need, divide the total cubic yards needed by the yield. Use the following yields per each bag size:

Use our concrete calculator to quickly calculate your concrete pours. Enter the length, width and thickness or height to find the number of cubic feet, yards or meters or bags of concrete needed for your project. You can also calculate home, column or round concrete footings as well as circular concrete slabs or tubes.

How many bags of quikrete make a yard? One 80lbs bag of Quikrete Concrete Mix will yield approximately. 60 cu ft. So it will take 45 bag to equal one cubic yard of concrete. If you have a project over a 1/2 a cubic yard you should consider our Mix On-site Concrete especially if you are hand mixing. What is the formula for cubic yards?

This process is simple. Simply take the 40 cubic yards and divide it by 27, which calculates to 40 / 27 = 1.48 cubic yards required for the poured concrete project. Multiply that number (1.48) by 1.05 for that little extra material if needed. This will provide 105% of the necessary amount for any extra in case of spillage, waste, or if the ...

Here is how to calculate the required number of bags: First, you need to calculate the volume of the post hole. Volume = 1.96344 cubic feet or 0.07271 cubic yards. The second step is to divide the volume by the yield. For example, for a 60lb bag, 0.07271 / 0.01648 = 4.412, rounding up to 5 60lb bags.

Standard Portland cement concrete has a compressive strength of 3,000 to 6,000 pounds per square inch (psi), or about 20,684.27 to 41,368.54 kilopascals (kPa). In contrast, its tensile strength is only 300 to 700 psi (2,757.9 to 4,826.33 kPa). This can be a problem for tall buildings.

To create a yard with 40lb bags of concrete, you'll need 90 bags. To create a yard with 50lb bags of concrete, you'll need 72 bags. To create a yard with 60lb bags of concrete, you'll need 60 bags. To create a yard using 80lb bags of concrete, you'll need 45 bags. You can use this concrete calculator to compute the quantity of bags of concrete.

Just enter in the desired height, width, and thickness of your concrete project and then press the calculate button. The free concrete calculator will tell you exactly how many 40 lb, 60 lb, or 80 lb bags of concrete that you will need to buy. It's really that simple – try it out today and then be sure and try out all of our calculators!

Concrete Mix Pouring Calculators Please select the type of concrete usage calculation you need to do using the tabs underneath the following pictures. Holes & Columns Slabs, Footings & Walls Tubes & Circular Slabs Holes Slabs Tubes Holes & Columns Calculate the volume of cubic yards needed to fill in a hole, column or round footing.

Use the Ready Mixed Concrete Calculator below to estimate the total cubic yards of concrete needed for your next project. Please note that these calculators should be used for estimates only, and you should always factor in an additional 5% - 10% of material for waste and spillage. Slab Calculator.

The best Concrete Calculator to estimate your concrete slab and footing pours and get estimating tips. Enter the depth, width, and length of your concrete slab to determine the number of cubic yards and concrete bags needed to complete your project. Slabs Footings Columns Width: feet Length: feet Depth: inches Pre-mixed bags of concrete: 40 lb — 0

This is the formula for yards of concrete. (L x W) x H ÷ 27 For a square or rectangular slab: Measure the area in feet to get square footage Multiply length by width, and then by thickness Divide the number by 27 to get cubic yardage. Example: 20' x 20' slab that's 6" thick (20 x 20) x .5 = 200 200 ÷ 27 = 7.4 cubic yards of concrete

Definition of a concrete calculator. A concrete calculator is an automated program used to estimate the amount of concrete, in volume or weight, to fill a given area. Typically in the US concrete is sold in pound bags or by the cubic yard. How to calculate how much concrete is needed? Determine the width, length, and depth of the area you want ...

Here are the steps to find out how much concrete we would need for this test using our calculator: Input 4 inches for the diameter and 8 inches for the height. Enter 10 for the quantity of concrete cylinders needed. Our calculator will already display a concrete volume of 1,005.3 cubic inches by this time.

How much is concrete a yard? The cost of concrete per cubic yard depends on which brand you purchase, but usually costs about $110 for bags. How many 80lb bags of concrete make a yard? It takes about 41 bags of concrete to fill a cubic yard. Always plan to buy a few bags more than the exact required amount in case of mistakes.

For concrete, the formula for volume is as follows: length x width x thickness. To determine how many bags of concrete you will need, divide the total cubic yards needed by the yield. Use the following yields per each bag size: 40 pound bag yields .011 cubic yards 60 pound bag yields .017 cubic yards 80 pound bag yields .022 cubic yards

How to use our cement calculator? Using our cement calculator is quite easy. The first thing you have to do is select which mix you want to make. After that, input the wet volume of the mix you need. We have already pre-entered a value for the dry volume to wet volume ratio, but you can still change it.

60 bags of concrete mix are required to produce a cubic yard of concrete. It takes about.45 cubic feet of concrete to fill a 60-pound bag (27.2 kg) (12.7L) A yard contains 27 cubic feet of concrete. If you multiply 27 by.45, you get 60 bags of cement. If you use a large or heavy bag, the number of bags in a yard will be different.

Step 1: Measuring the length, width and depth of the area in which you are going to pour the concrete. Multiply all the dimension (L*W*D) and you'll get the volume of the concrete material. Step 2: If you want to get the volume of concrete in cubic yards and you have measured the dimensions in feet then you simply have to divide the volume by 27.

Simply enter the measured distances and, if needed, select the units of measure. The calculator will automatically estimate how much concrete you'll need by volume (cubic feet, cubic yard, and cubic meters), as well as by bags of concrete mix. Note: This calculator will resize automatically to fit on your desktop or mobile device.

Here's a step-by-step guide to help you figure out how many bags of concrete you will need for your project. Step 1: Measure the Area. The first step in determining how much concrete you need is to measure the area where you plan to pour the concrete. Measure the length, width, and depth of the area. Make sure to measure in feet, so you can ...