All About Cubic Feet in Yards of Concrete
The concept of cubic feet in yards of concrete becomes important to understand if you are working or dealing with any type of concrete work. As we all know, cubic feet and yards are two different units of measurement, but why are paid so important in the work of concrete?
A simple thing that we should comprehend here before moving further is that people who do not clearly know how cubic feet in yards of concrete work or what cubic feet and yards are, and what the difference between them is, they mostly end up making mistakes in estimation and ordering the wrong quantity of material.
Recent data has also clarified this claim. According to the industry data, the U.S. ready-mix industry delivers around 400 million cubic yards of concrete every year, of which a large amount is gone as wasted or reused as crushed material.
The reason behind a huge wastage is the wrong estimation and poor unit conversion. In calculations, even a small percentage of wrong orders turns into a large amount of wasted material and money across projects.
Cubic Feet & Yards
A cubic foot is a small box with one foot measurement. A cubic foot represents a box that have three 1 foot measurements. It can be taken as 1 foot in length, 1 foot in width, and 1 foot in height.
These are three measurements of a box. It will not be mentioned separately and the word cubic feet will be used here because 1 foot x 1 foot x 1 foot makes three feet, so we write it as cubic feet.
This is the easiest way to understand a cubic foot. The next thing is where this is used.
Cubic feet is used when you measure small areas or when you first calculate volume from your measurements on site.
For instance, if you have a slab that is 15 feet long, 12 feet wide, and 0.5 feet thick, when you will multiply this using the volume formula, which is “L x W x H”, your first answer will come in cubic feet.
Yard & Cubic Yard
A yard is a normal unit of measurement that measures the length of any area. It is mostly used in the USA and a few other countries.
1 yard is 3 feet long. In inches it is equal to 36 inches. If we convert them into these two units, respectively.
A yard is used for measuring distances of any space and also the size of anything. When you convert from a yard to a cubic yard, it is the same as wanting to know how much space a 1 yard by 1 yard by 1 yard area has.
In concrete work, cubic yards are used and not single yards. Cubic yards can also be taken as the opposite of cubic feet. Cubic feet is a small pack measurement, but yards is a bigger box measurement.
A cubic yard is an area that measures 1 yard in length, 1 yard in width, and 1 yard in height.
On the other hand, now you should know that one yard is equal to 3 feet. So this will be taken as the box is 3 ft × 3 ft × 3 ft.
So 3 by 3 by 3 gives 27 as the answer.
This is why 1 cubic yard is taken as 27 cubic feet.
Concrete suppliers use cubic yards because it is a more suitable unit for ordering concrete larger volumes.
In the USA, whenever you order the concrete material, the supplier mostly, and usually, asks this: “How many cubic yards do you need?”
The fact is that both units, cubic feet and cubic yards, are used in concrete work, and both measure the concrete volume. The only difference is the scale.
Cubic feet are good for small calculations and for buying concrete in small quantities. This is useful because in smaller work, you measure everything in feet on site. Cubic yards, on the other hand, are suited for larger projects that could cover a larger volume at once.
So, this is what cubic feet in yards of concrete actually means.
How Much Is Cubic Feet in Yards of Concrete?
If you want to know how many cubic feet are there in one cubic yard of concrete you can easily know. There is only one main rule to know the difference and for the conversion and that is very easy.
You should learn only two numbers, and that are 1 cubic yard is 27 cubic feet.
As we have already discussed the cubic feet and cubic yards difference above, there is nothing difficult to understand here. The relation between the yards and feet lies in the number 27.
So, if you know the volume of concrete in cubic feet and you want it in cubic yards, you just have to do this:
Divide the cubic feet volume by 27
Here is an example for your help. Suppose you have 54 cubic feet of concrete and you want to know how much this is in cubic yards. So you will do this:
54 ÷ 27 = 2 cubic yards of concrete.
This is a small conversion that helps you move from your site measurements in cubic feet to the order quantity in cubic yards.
If you want to know how to convert the unit from cubic yards to cubic feet, you have to multiply the cubic yards value with 27. So in our example, where we had 2 yards of concrete, and to convert it in cubic feet, we will multiply it by 27.
So, 2 x 27 = 54
The rule is simple. To convert from cubic feet to cubic yards, we will divide, and to convert from cubic yards to cubic feet, we will multiply.
This is a straightforward math rule. When we convert a smaller unit to a larger we divide, and when we convert a larger unit to a smaller one, we multiply.
We multiplied here because a cubic yard is bigger than a cubic foot. One cubic yard measures 3 feet × 3 feet × 3 feet, which is 27 cubic feet.
So, in this, going from cubic yards to cubic feet, you have to multiply. Going from cubic feet to cubic yards, you divide.
The Use of a Calculator with Cubic Feet and Cubic Yards
Now, at the present time, a concrete calculator has become a handy tool that can do all the calculations for you in no time. If you use a concrete calculator for concrete volume estimation in a suitable way, then we can say it is the best option.
A concrete calculator not only tells you the volume of concrete, but it also highlights the volume in different units, so you don’t spend further time in conversion.
When you are using a calculator, all you need to do is add the values in correct units and all in one single unit. The calculator will give you a correct estimation of the volume of concrete that you need for your work.
Just assume this, you add the all two main dimensions in feet which is the length and width. You will have to add the thickness too in feet rather than inches. This is necessary for the calculator to process your calculation and provide you with the correct estimation of the concrete volume. The calculator will give you the result in this format:
The volume of concrete in Cubic feet
The volume of concrete in cubic yards
The volume of concrete in cubic meters
The number of premixed bags of different sizes
Just take it that if you are manually calculating the concrete volume, you usually measure and calculate the area dimensions in feet that give you the result in cubic feet, and you have to manually convert it to different units.
Moreover, the suppliers mostly sell concrete in cubic yards, and this is where many people feel confused and unsure between the units. This is why you should have a clear understanding of the units before starting the construction work.
Case Study on Waste Reduction Challenges & the Implications for Accurate Measurement
A 2019 study of a major ready‑mix supplier in Brazil found that about 3% of all produced concrete volume returns to the plant broken down completely. Among these, 1.6% adhered concrete inside the mixer drums, and the remaining 1.4% leftover concrete.
These similar issues were also reported globally and by the National Ready Mixed Concrete Association (NRMCA).
The concrete waste largely emanates from over‑ordering concrete that is of no use or poor planning of the construction project at the time of ordering.
The ready‑mix concrete industry always produces more concrete than is actually used on site, and this is the result of miscalculation and wrong estimation, either by guessing or calculating incorrectly.
What it actually means is:
- The increase in cost
- The poor planning of the contractors and builders
- The money is spent unnecessarily
- The material is going to waste
- Environmental burden and waste management work increases to dispose of the waste or use it at landfills.
Concrete production contributes significantly to environmental impact. The concrete industry is responsible for around 8% of global CO₂ emissions
What This Means for Concrete Calculations
This study highlights how common it is to over‑order concrete when estimations are based on guesswork and rough calculation. Sometimes the calculations are also based on conservative over‑estimates that also lead to problems.
If even experienced plants face this problem, then there are many opportunities for the construction masters to benefit from this by using a proper flow.
A concrete calculator is an important tool at such a moment that helps to clearly get the material estimation through area measurements.
So measure carefully using a concrete calculator and order accordingly. The calculator helps to:
- Calculate the estimate properly
- Convert units correctly
So, use a concrete calculator to find out the exact volume you need for your construction work and add a small safety buffer, mostly 5 percent, and sometimes 10 percent. This isnecessary to reduce the chances of material wastage which is the result of leftover concrete. This also reduces your expenses.
Every year about 500 million cubic meters of fresh concrete are discarded or go unused as per the recent survey because the estimation is not calculated correctly.
Final Words
This is essential to understand cubic feet in yards of concrete for everyone working in concrete estimation work. Accurate estimation is necessary for several reasons:
- To order the concrete in the correct amount.’
- To let the project go without delay
- To reduce the material waste
- To know the volume in cubic feet and cubic yards
- To understand the work and ordering with different units
The fact is that even experienced contractors and large suppliers face significant waste due to miscalculations or over-ordering. So don’t pretend to be smart and use the calculator for volume estimation.
Frequently Asked Questions
How many square feet are in a cubic yard of concrete?
Square feet is counted by the thickness you want at the end of concrete work. You should divide 27 by the thickness in feet to get the area in square feet.
How much area does 1 cubic yard of concrete cover?
1 cubic yard of concrete covers 81 square feet of area.
Why is it important to convert correctly between cubic feet and cubic yards?
It is important to convert correctly because correct conversions will give you the idea about the eaxt quantity you should buy so that nothing goes wasted and your money can also be saved.
Alex Morgan is a home improvement enthusiast from the U.S. who loves simplifying complex calculations for builders and DIYers. At TogCalculator.com, Alex shares easy-to-use guides and accurate calculator tools that help homeowners plan smarter projects. His goal is to make construction math simple, reliable, and stress-free for everyone.
