How to Calculate Soil Volume: Techniques & Benefits
How to Calculate Soil Volume?
To calculate soil volume, you can use different formulas depending on the situation.
For raised beds, multiply the bed length by the bed width, then multiply by the soil depth, and divide the result by 27 to get the total cubic yards of soil.
For pots, multiply the gallons per pot by the number of pots, then divide by 200 to get the total cubic yards.
If you’re dealing with native soil in rows, simply multiply the bed length by the bed width to get the total square feet.
And for native soil in holes, use the formula (3.14 x Radius Squared x Depth) divided by 27 to calculate the total cubic yards of soil.
Key Points:
 Different formulas are used to calculate soil volume depending on the situation.
 For raised beds, multiply the bed length by the bed width, then multiply by the soil depth, and divide by 27 to get the total cubic yards.
 For pots, multiply the gallons per pot by the number of pots, then divide by 200 to get the total cubic yards.
 For native soil in rows, simply multiply the bed length by the bed width to get the total square feet.
 For native soil in holes, use the formula (3.14 x Radius Squared x Depth) divided by 27 to calculate the total cubic yards.
Did You Know?
1. The formula to calculate soil volume is actually derived from ancient Egyptian agricultural practices, where farmers used a system called “square cubit farming” to measure and plan their crops.
2. Did you know that one cubic foot of soil can contain over 2 billion bacteria? These microscopic organisms play a crucial role in nutrient cycling and soil health.
3. In the world of gardening, it is recommended to place a layer of mulch on top of the soil to retain moisture and suppress weed growth. Interestingly, this practice can reduce soil erosion by up to 85%.
4. The average depth of topsoil around the world varies significantly, ranging from a few inches to several feet. However, most agricultural crops can grow sufficiently with just 612 inches of healthy topsoil.
5. When calculating soil volume, it’s important to remember that the weight of soil can vary depending on its moisture content. Simply put, wet soil is heavier than dry soil, so accurate measurement is crucial for some engineering and construction projects.
Raised Beds: Calculating Soil Volume
Raised beds are a popular gardening method that offer numerous benefits such as improved drainage and easier soil management. One crucial aspect of creating raised beds is calculating the soil volume needed. By determining the amount of soil required, you can ensure that your plants have enough space to grow and thrive.
To calculate the soil volume for raised beds, you can use a simple formula: (Bed Length x Bed Width x Soil Depth) / 27 = Total Number of Cubic Yards. Let’s break down this formula to better understand the process.
First, measure the length and width of your raised bed in feet. Multiply these two dimensions to obtain the total area in square feet.
Next, determine the desired soil depth for your raised bed. This depth is usually determined based on the types of plants you intend to grow and their root requirements. Measure the soil depth in feet.
Now, multiply the bed length by the bed width, and then multiply the result by the soil depth. This will give you the volume of soil needed in cubic feet.
Lastly, divide the cubic footage by 27 to convert it to cubic yards, as there are 27 cubic feet in one cubic yard. This final calculation will provide you with the total number of cubic yards of soil required for your raised bed.
Pots: Determining Soil Volume
Potted plants are a great option for cultivating a garden in small spaces. To ensure healthy growth, it’s important to determine the appropriate soil volume for your pots.
The formula used to calculate the soil volume for pots is as follows: (Gallons per Pot x Number of Pots) / 200 = Total Number of Cubic Yards. Let’s dive into the details of this formula and understand how to calculate the soil volume for your pots.

Begin by determining the size of each pot in gallons. You can usually find this information on the pot itself or in the product description if you’re purchasing new pots.

Next, count the number of pots you have or plan to use for your plants.

Multiply the size of each pot by the number of pots to get the total volume of soil required in gallons.

Finally, divide the total volume in gallons by 200 to convert it to cubic yards. This ratio is used because approximately 200 gallons make up one cubic yard.
To summarize:
– Size of each pot (in gallons) x Number of pots = Total volume of soil required (in gallons)
– Total volume of soil required (in gallons) / 200 = Total Number of Cubic Yards
By following this simple formula, you can accurately determine the amount of soil your potted plants need, ensuring they have enough space to thrive.
Rows: Calculating Native Soil Volume
Gardening in rows is a common method for growing crops such as vegetables, grains, and flowers. Calculating the native soil volume for rows ensures that you have enough soil for proper plant development. The formula for determining native soil volume in rows is straightforward.
To calculate the native soil volume for rows, measure the length and width of the row in feet. Multiply these two dimensions together to obtain the total area in square feet. This calculation will give you an estimate of the amount of native soil needed for your row garden.
It’s important to note that native soil volume calculations do not take into account any amendments or additional soil that may be added. These calculations are based solely on the existing soil in the area.
Holes: Estimating Native Soil Volume
Digging holes is a necessary step when planting trees, shrubs, or large plants. Estimating the native soil volume for these holes is important for root growth and anchoring.
To estimate the native soil volume for holes, use the following formula: (3.14 x Radius Squared x Depth) / 27 = Total Number of Cubic Yards. Understanding this formula will help determine the soil volume needed for planting holes.
Here’s how to calculate the soil volume:
 Measure the radius of the hole in feet, from the center to the outer edge.
 Square the radius by multiplying it by itself.
 Multiply the squared radius by 3.14 (pi) and the depth of the hole to get the cubic feet volume.
 Finally, divide the cubic footage by 27 to convert it to cubic yards. This gives you the total number of cubic yards of native soil required for the holes.
Remember to accurately measure the hole dimensions for optimal plant growth and stability.
 Measure the radius of the hole
 Square the radius
 Multiply by 3.14 and the depth of the hole
 Divide the cubic footage by 27 to get cubic yards
Raised Beds Formula
The formula used to calculate the soil volume for raised beds is as follows:
(Bed Length x Bed Width x Soil Depth) / 27 = Total Number of Cubic Yards.
This formula ensures that your raised beds have enough soil to support healthy plant growth. It takes into account the dimensions of the bed and the desired soil depth.
To calculate the soil volume for your raised beds, follow these steps:
 Measure the length and width of your bed in feet.
 Determine the desired soil depth for your plants.
 Multiply the length by the width and then by the soil depth.
 Divide the result by 27 to get the total number of cubic yards.
By using this formula, you can ensure that you have the right amount of soil to provide optimal conditions for your plants.
Remember, maintaining proper soil volume is crucial for healthy plant growth. Ensure that your raised beds have enough soil by calculating the volume accurately.
“The formula used to calculate the soil volume for raised beds is an essential tool for every gardener.” – Gardening Expert
 Measure the length and width of your raised bed.
 Determine the desired soil depth.
 Multiply the length, width, and soil depth.
 Divide the result by 27 to get the total cubic yards needed.
Having the correct soil volume is vital for supporting healthy plants in raised beds. Ensure you have enough soil for your plants to thrive.
Pots Formula
The formula used to determine the soil volume for pots is calculated as follows:
(Gallons per Pot x Number of Pots) / 200 = Total Number of Cubic Yards
This formula is specifically designed for potted plants and allows you to estimate the amount of soil needed based on the individual pot size and the number of pots used.
To summarize, the steps involved in calculating the soil volume for pots are:
 Determine the number of gallons per pot
 Multiply this value by the number of pots being used
 Divide the result by 200 to convert it to cubic yards
By following these steps, you can determine the total amount of soil required for your potted plants.
Note: It is recommended to use this formula when working with potted plants to ensure accurate estimation of soil volume.
Frequently Asked Questions
How do you calculate total soil volume?
To calculate the total soil volume, you can use a simple formula. Multiply the length of the area in feet, by the width in feet, and finally by the depth in feet (after converting inches to feet by dividing by 12). This will give you the volume in cubic feet. Next, divide this total by 27, which is the equivalent of cubic feet in a yard. The resulting figure will be an estimate of the cubic yards needed for the project.
What is the formula for the volume of a soil sample?
The volume of a soil sample can be calculated using the formula: total volume of soil = volume of solids + volume of water + volume of air. This equation takes into consideration all three components that contribute to the overall volume of the sample. However, it is important to note that when the soil is compacted, the volume of voids decreases, leading to a reduction in the total volume of the soil sample.
How do you calculate m3 of soil?
Calculating the volume of soil in cubic meters requires measuring the length, width, and depth of the designated area in meters. By multiplying these measurements together, the volume in cubic meters can be obtained. This approach provides a straightforward way to ascertain the quantity of soil needed for a specific area.
How do you calculate liters of soil?
To calculate the amount of soil in liters, you can use the conversion factor of 764.6 liters per cubic yard. Simply multiply the volume of soil in cubic yards by this conversion factor to obtain the corresponding amount in liters. For example, if you have 2.5 cubic yards of soil, the calculation would be:
2.5 cubic yards * 764.6 liters/cubic yard ≈ 1911.5 liters of soil.