Water Saturation Calculator


Calculating water saturation is crucial in various fields, particularly in geology and hydrology. It helps determine the amount of water present in a substance relative to its maximum capacity. With the advent of technology, online calculators make this process more accessible and efficient. This article presents a functional water saturation calculator along with detailed instructions on its usage.

How to Use

To utilize the water saturation calculator, follow these simple steps:

  1. Input the required parameters, including porosity, water content, and bulk density, into the designated fields.
  2. Click the “Calculate” button to obtain the water saturation percentage.


The formula used for calculating water saturation (S_w) is as follows:


  • Sw​ is the water saturation percentage.
  • Vw​ is the volume of water.
  • Vt​ is the total volume.

Example Solve

Let’s consider an example:

  • Porosity (Φ): 0.25
  • Water Content (Vw): 10 (in cubic meters)
  • Bulk Density (ρb): 1500 (in kilograms per cubic meter)

Using the formula:


Frequently Asked Questions (FAQs)

What is water saturation?

Water saturation refers to the percentage of pore space filled with water in a substance, such as soil or rock.

Why is water saturation important?

Water saturation is crucial in various industries, including agriculture, oil and gas exploration, and environmental science, as it provides insights into groundwater availability, oil reservoirs, and soil fertility.

Can this calculator be used for different units?

Yes, this calculator accepts input in various units, including cubic meters, cubic feet, kilograms per cubic meter, and pounds per cubic foot.

Is the formula used in this calculator accurate?

Yes, the formula used in this calculator provides an accurate estimation of water saturation based on the provided inputs.


The water saturation calculator presented in this article offers a convenient tool for determining water saturation percentages in different substances. By following the provided instructions and using the accurate formula, users can efficiently analyze water content in various materials.

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