Soil Calculator

Calculate how many bags of top soil you need for your landscaping project by drawing and measuring the areas you want to cover directly on a google satellite map of your property.
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Length, Width & Depth
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The Soil Calculator is a tool that helps you estimate the amount of topsoil you need for your landscaping project. It does this by calculating the total area you want to cover, the volume of soil you need, and the weight of the soil. We are a licensed contractor and the calculator implements the method we would use in the field to figure out the amounts. Given that there is significant difference between bulk and retail prices we show prices and information for both cases and we also link to store pages with prices where we would normal buy the materials from.

Calculating the Total Area

The first step in the calculation is to determine the total area you want to cover with topsoil. This is done by drawing and measuring the areas directly on a Google satellite map of your property. The total area is then calculated in square meters. For example, if you have a rectangular garden that is 10 meters long and 5 meters wide, the total area would be calculated as follows:

Area = Length x Width = 10m x 5m = 50 square meters

Calculating the Volume of Soil

The next step is to calculate the volume of soil you need. This is done by multiplying the total area by the depth of soil you want. The depth is usually given in meters. For example, if you want a depth of 0.2 meters of soil, the volume would be calculated as follows:

Volume = Area x Depth = 50m² x 0.2m = 10 cubic meters

The volume is also converted into cubic yards and cubic feet for your convenience.

Calculating the Number of Soil Bags

The calculator then estimates the number of 0.75 cubic feet bags of soil you need. This is done by dividing the total volume (in cubic feet) by the volume of one bag of soil. For example, if the total volume is 353.15 cubic feet, the number of bags would be calculated as follows:

Number of bags = Total volume ÷ Volume of one bag = 353.15ft³ ÷ 0.75ft³/bag = 471 bags

Calculating the Weight of the Soil

Finally, the calculator estimates the weight of the soil. This is done by multiplying the volume by the density of the soil. The density varies depending on whether the soil is dry or wet. The calculator provides a range for the weight, as the exact weight can vary depending on the specific type of soil and its moisture content. For example, if the volume is 10 cubic meters, the weight of dry soil would be calculated as follows:

Weight = Volume x Density = 10m³ x 1.1 tons/m³ = 11 tons

And the weight of wet soil would be calculated as follows:

Weight = Volume x Density = 10m³ x 1.6 tons/m³ = 16 tons

So, the weight of the soil would be between 11 and 16 tons.


The soil plays a crucial role in agriculture as it serves as the medium in which plants grow. It provides the necessary nutrients, water, and air that plants need for growth and development. The type, quality, and health of soil directly affect the productivity of crops.

Soil fertility is a key factor in agriculture. Fertile soil contains the right balance of nutrients like nitrogen, phosphorus, and potassium, which are essential for plant growth. If the soil lacks these nutrients, crops may not grow well, leading to lower yields.

Soil pH is another important aspect. Some crops prefer acidic soil, while others prefer alkaline soil. The wrong pH can hinder the absorption of nutrients by plants, affecting their health and yield.

Soil structure and composition also matter. Loamy soil, which is a mix of sand, silt, and clay, is often considered ideal for farming because it retains water but also drains well, preventing waterlogging and root rot.

Furthermore, soil is home to many beneficial microorganisms that contribute to plant health. They help in nutrient cycling, decomposing organic matter, and protecting plants from diseases. Therefore, maintaining soil health is crucial for sustainable agriculture.


The type and quality of soil play a significant role in construction. The soil's properties, such as its composition, compactness, ability to drain water, and load-bearing capacity, can significantly impact the stability and durability of a construction project.

For instance, clay-rich soil can expand when wet and shrink when dry, leading to ground movement that can damage structures. Sandy soil, on the other hand, has good drainage but poor compactness, which can lead to shifting and settling. Loamy soil, a balanced mix of sand, silt, and clay, is generally considered ideal for construction due to its stability and good drainage.

Before construction begins, a soil test is usually conducted to determine the soil's properties and suitability for the project. This helps engineers design the foundation and other structural elements appropriately to ensure the safety and longevity of the structure.

Environmental Studies

Soil plays a crucial role in environmental studies as it is a vital component of the Earth's ecosystem. It serves as a habitat for billions of organisms, contributing to biodiversity. It also plays a significant role in the nutrient cycle, acting as a natural medium for plant growth, which in turn supports wildlife and human life.

Soil also has a significant impact on the Earth's climate. It stores carbon and plays a key role in the carbon cycle, helping to regulate atmospheric carbon dioxide levels and thus global temperatures. Soil erosion can lead to a loss of fertile land, which can impact agricultural productivity and food security. This can also lead to increased sediment in waterways, affecting water quality and aquatic ecosystems.

Furthermore, soil acts as a filter for pollutants, helping to protect groundwater quality. However, when soil is contaminated, it can pose risks to human health and the environment. Therefore, understanding the properties and functions of soil is essential in environmental studies to develop sustainable land management practices and mitigate environmental issues.

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