Saturated Unit Weight of Soil Calculator

Soil mechanics is a fundamental discipline that forms the basis for the design of civil engineering infrastructure. Engineering principles dictate that the soil's strength and properties are vital for designing foundations, embankments, retaining structures, and other geotechnical applications. One of the essential properties of soil mechanics is the saturated unit weight of soil. It is an essential parameter that affects the soil's strength and deformation characteristics. Saturated Unit Weight of Soil Calculator is a tool that helps civil engineers and geotechnical professionals to calculate the soil's saturated unit weight accurately. With this tool, engineers can make informed decisions about the soil's suitability for a particular application, soil bearing capacities, and soil's shear strength. This calculator works by taking into account the soil's moisture content, specific gravity, and unit weight. The result obtained from this calculator can inform the design of retaining walls, foundations, and other geotechnical structures. It helps ensure that the infrastructure is safe and durable, thereby improving the quality of life for people who use it.

Saturated Unit Weight of Soil Calculator

Calculate the saturated unit weight of soil based on its properties.

Saturated Unit Weight of Soil Calculator Results
Dry Density:0
Water Content:0
Specific Gravity:0
Void Ratio:0
Soil Type:0
Saturated Unit Weight:0

Analyzing soil properties often involves assessing saturated unit weight of soil. Our saturated unit weight of soil calculator pairs effectively with the soil infiltration rate calculator, aiding in soil analysis and geotechnical calculations.

How to Use the Saturated Unit Weight of Soil Calculator

The Saturated Unit Weight of Soil Calculator is a valuable tool for geotechnical engineers, civil engineers, and professionals involved in soil mechanics and foundation design. It helps in understanding the behavior of soil under different conditions, aiding in the design and analysis of structures. By accurately calculating the saturated unit weight, engineers can make informed decisions regarding the stability and load-bearing capacity of soil.

Primary Applications

The Saturated Unit Weight of Soil Calculator finds its application in various scenarios, including but not limited to:

  • Geotechnical engineering: Determining soil properties for slope stability analysis, bearing capacity calculations, and settlement analysis.
  • Foundation design: Estimating soil weight for designing shallow and deep foundations.
  • Earthworks and construction projects: Assessing soil properties for excavation, embankment design, and compaction control.
  • Retaining wall design: Calculating the weight of soil for retaining wall stability analysis.
  • Soil classification: Aiding in soil classification systems based on the calculated saturated unit weight.

Instructions for Utilizing the Calculator

To utilize the Saturated Unit Weight of Soil Calculator effectively, follow these steps:

Input Fields

  • Dry Density: Enter the dry density of the soil. The dry density is typically measured in kilograms per cubic meter (kg/m³). It represents the mass of solids per unit volume of soil without any water.
  • Water Content: Input the water content of the soil. Water content is expressed as a percentage and represents the amount of water present in the soil.
  • Specific Gravity: Specify the specific gravity of the soil. Specific gravity is a dimensionless quantity that compares the density of a substance to the density of water.
  • Void Ratio: Enter the void ratio of the soil. Void ratio is the ratio of the volume of voids (pore spaces) to the volume of solids in the soil.
  • Saturation: Select the saturation level of the soil from the options provided. It represents the degree to which the soil is filled with water.
  • Soil Type: Choose the appropriate soil type from the options provided. The calculator considers different soil types for accurate calculations.

Output Fields and Interpretations

Once you have filled in all the required input fields and clicked the Calculate Saturated Unit Weight button, the calculator will display the following output fields:

  • Dry Density: Shows the dry density value you entered.
  • Water Content: Indicates the water content value you entered.
  • Specific Gravity: Displays the specific gravity value you entered.
  • Void Ratio: Shows the void ratio value you entered.
  • Saturation: Indicates the saturation level you selected.
  • Soil Type: Displays the soil type you selected.
  • Saturated Unit Weight: This field provides the calculated saturated unit weight of the soil. The unit of measurement is kilograms per cubic meter (kg/m³).

Saturated Unit Weight of Soil Calculator Formula

The calculation performed by the Saturated Unit Weight of Soil Calculator depends on the soil type selected. The formulas for each soil type are as follows:

  • Sand: Saturated Unit Weight = (1 + Void Ratio) * Dry Density / (1 + Water Content)
  • Gravel: Saturated Unit Weight = (1 + Void Ratio) * Dry Density / (1 + 0.5 * Water Content)
  • Clay or Silt: Saturated Unit Weight = (1 + Void Ratio) * Dry Density / (1 + Water Content * (Specific Gravity - 1))

Illustrative Example

Let's consider an example to illustrate the functionality of the Saturated Unit Weight of Soil Calculator.

Suppose you are analyzing a soil sample with the following properties:

  • Dry Density: 1800 kg/m³
  • Water Content: 10%
  • Specific Gravity: 2.65
  • Void Ratio: 0.5
  • Saturation: 95%
  • Soil Type: Clay

Using the Saturated Unit Weight of Soil Calculator, after inputting the above values, you would obtain the following results:

  • Saturated Unit Weight: 1773.71 kg/m³

Illustrative Table Example

Below is a table containing multiple rows of example data, showcasing different scenarios and inputs for the Saturated Unit Weight of Soil Calculator.

Dry Density (kg/m³)

Water Content (%)

Specific Gravity

Void Ratio


Soil Type

Saturated Unit Weight (kg/m³)


The Saturated Unit Weight of Soil Calculator is a powerful tool that simplifies the calculation of saturated unit weight, aiding in geotechnical engineering and construction projects. By inputting specific soil properties, you can obtain accurate results for better understanding and analysis of soil behavior. Understanding the saturated unit weight is crucial for designing foundations, assessing slope stability, and ensuring the stability and safety of structures. Embrace the convenience and efficiency of the Saturated Unit Weight of Soil Calculator for your soil-related calculations and analyses.

About the Author

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Shuvo Shaha
Python Developer

Shuvo Shaha is a skilled Python developer with expertise in developing efficient and user-friendly web applications. He is passionate about writing clean and maintainable code and is always exploring new technologies to improve his skills. With a strong background in computer science, Shuvo has experience working with a variety of frameworks and libraries, including Django and Flask. He is a collaborative team player who is dedicated to delivering high-quality work on time and on budget.