Here is how you use the concrete calculator formula: Step #1: The first thing you need to do is to determine how thick you want the concrete to be. Enter the diameter and height of your concrete column to calculate the number of cubic yards and concrete bags needed to complete your project.

Use this to figure how much material you need for the subgrade. Explore other calculators related to housing or building, as well as hundreds of other calculators addressing finance, math, fitness, health, and more.

Knowing how much concrete is needed for a job is incredibly important. The porch also has 9 linear feet of 6" step.

Calculate the true width. Let’s say that the driveway you want to build has 10′ X 10′. For concrete, the formula for volume is as follows: length x width x thickness. In this step, you need to go back to step 1 and convert the thickness you want the concrete to be from inches to feet. 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. • Discuss any variances with the supplier. Figure driveway 14' x 20' and your estimate will be good. You may need to download version 2.0 now from the Chrome Web Store.

Here is how you use the concrete calculator formula: The first thing you need to do is to determine how thick you want the concrete to be. Why Is It So Important To Use The Concrete Calculator Formula? Steps seem tricky to calculate but are not. 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 While some projects require more compact concrete, others require more diluted concrete. To determine how many bags of concrete you will need, divide the total cubic yards needed by the yield. If you check your grade and one spot is 4", some spots are 4.5" to 5"-the best solution for both the job quality and your concrete budget is to fix the grade. For each calculation you will have to know the dimensions of your object. 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.

Square and Rectangular Areas. If your project requires more concrete, multiple trucks will be necessary. A 20 cubic yard order with 1 cubic yard left over is a good order. Include a margin of safety. Concrete Contractors: Get Job LeadsFind out how Concrete Network is different from other lead services. Our mix-on-site concrete calculation is based on batching by volume (Large construction sites employ batching by weight which is more exact). Press calculate and you have the answer! Two of the most important ones include an extra charge from the concrete supplier (as well as since you will only need a small amount of concrete, you may end up paying more for the transportation than for the concrete itself), and the fact that a cold joint can occur. Our free Concrete Calculator makes it easy to find out how many yards of concrete you need. Concrete is one of the materials that is commonly used when you have a building project.

Copyright 1999-2020 ConcreteNetwork.com - None of this site may be reproduced without written permission, Calculate concrete slab and footing pours and get estimating tips. So it is important to check a variety of spots on your footing and get an average size. 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. The average truck holds between 9 and 11 yards total. The total concrete needed for the 3' by 3' porch will be .28 cubic yards. However, one of the things that most people don’t know if how to actually use the concrete calculator formula to calculate the amount of concrete that they need. Your IP: 163.172.227.14 Discover the best online calculators you can use for free. This totals .11 cubic yards. Use our concrete calculator to help you determine how much concrete you need for your project.

Then use the calculator to figure the amount of concrete needed.

Learn how to correctly calculate how much concrete mix you will need for your job. Use this free concrete calculator to determine how much concrete you need. Never try to order the exact amount of needed concrete. In rocky soil the footings may collapse when big rocks are excavated. Use this free concrete calculator to determine how much concrete you need. So enter in the footing calculator, 6" depth by 12" width (always figure steps with a 12" width) by 9' length. So, we can say that when you are using the concrete calculator formula, you need to multiply the length by the width by the thickness. Footings will rarely follow the drawing exactly. A 20 cubic yard order that comes up cubic yard short is not a good order.

You can calculate how much concrete, cement, sand, mortar or render you will need. In case your project has a strange area, check out these geometry calculators to help you determine the square feet of your project. For smaller jobs, like a walkway, modest patio or footings, you should calculate the number of concrete bags instead. Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. Use the footing calculator to calculate the sides of the porch and the steps, A short load charge from the ready mix supplier, A cold joint can occur (where one pour ended and another pour began). This totals .17 cubic yards. Ultimately, you need to use 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. Through the center the width averages 14'. In order to calculate it, you just need to multiply the thickness in feet that you calculate on the previous step by the square footage. ... For concrete, the formula for volume is as follows: length x width x thickness. Rule of thumb: add 1/4" to the thickness of your slab for your slab concrete budget. Granite Construction has an excellent base fill calculator on their site.

After you have chosen a Ready Mix Supplier, have a representative come to your site to give his/her opinion on the quantity required. 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. Learning how to calculate the amount of concrete needed is easy when using our concrete formula and online concrete calculator.

A rented mixer can be very helpful, but a wheelbarrow works for just a few bags. While you may assume that you just need to order some more and that the costs involved are only related to the extra time you need to complete the project, there are other costs.

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

(.11 + .17 cubic yards = .28 cubic yards). Odd shapes: Transform odd shapes into rectangles and odd shapes are suddenly easy to figure. If there are three steps leading up to a porch: This porch has 9 sq. 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. Let’s take a look at a practical example. Many ready mix companies will have a minimum order of 1 yard, and will charge shortage fees when ordering partial batches.

The following formulas can be used to estimate the material needed for various shapes. Simply enter in the desired width, length, and concrete thickness. This assumes you have the job evenly graded to the right depth, and the grade is well compacted. House slabs on grade that are 8" out of grade with a 4" slab also have some of the footing above the grade too. So, we decided to give you a hand and tell you all the steps you need to take when you want to use a concrete calculator formula. The truth is that it doesn’t matter if you want to build a patio, your driveway, or anything else. 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. Using the measurements provided, our calculator first works out the volume of the required concrete mix using the formulae given below. Standard concrete thickness is 4 inches. Calculate concrete volume of a round column Using measurements in feet: Area of the Circle (ft 2) = Pi x (Diameter/2)^2 Volume in Cubic Feet (ft 3) = Height x Area Volume in Cubic Yards (yd 3) = Volume in Cubic Feet (ft 3) / 27 This free concrete calculator estimates the amount of concrete necessary for a project, and can account for different shapes and amounts of concrete. So, in this final step, you need to convert cubic feet to cubic yards. Now, you need to know the cubic feet. Use the following yields per each bag size: Larger jobs such as driveways are easier to complete when ordering concrete by the yard, rather than trying to mix bag after bag by hand.

So, grab a measuring tape and measure both the width and the length. Ready mixed concrete by the yard is good for: If you’re planning to order concrete from a ready mix supplier, they’ll need to know how many yards of concrete to deliver. If you’re purchasing bagged concrete you may be able to have it delivered, but if it is only a few bags you’ll be responsible for transporting it yourself. To determine how many bags of concrete you will need, divide the total cubic yards needed by the yield. Step #2: Now, it’s time to … Let’s say that you want to build a driveway. While some projects require more compact concrete, others require more diluted concrete. If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. The excavator may have dug too deep, or it may have rained and footings needed to be dug out deeper to reach firm soil.

When you want to know how much concrete do I need, you need to have the amount of concrete calculated in cubic yards. Enter the depth, width and length of your concrete slab to calculate the number of cubic yards and concrete bags needed to complete your project.. Increase this to six inches to better handle heavy loads. Compare the figure with what you came up with. A perfectly placed order of concrete will finish the job with a small amount left over. The volume for a rectangular space is equal to the length times the width times the height. 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. 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. Performance & security by Cloudflare, Please complete the security check to access. Use the slab calculator to figure the concrete needed for the porch surface.