Tank Volume Calculator

Category: Various Measurements/Units
- August 20, 2025
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Calculate the volume and capacity of various tank shapes including cylindrical, rectangular, and spherical tanks for water, fuel, and other liquids.

Output Options

About Tank Volume Calculations

Tank volume calculators help determine the capacity and current content of various tank shapes. The calculations account for different geometries and fill levels.

Volume Formulas
  • Cylindrical Tank: V = π × r² × h
  • Rectangular Tank: V = l × w × h
  • Spherical Tank: V = (4/3) × π × r³
  • Horizontal Cylinder: Complex calculation based on fill height (partial cylinder)
Common Conversion Factors
  • 1 cubic foot = 7.48052 gallons (U.S.)
  • 1 cubic meter = 264.172 gallons (U.S.)
  • 1 cubic meter = 1,000 liters
  • 1 gallon (U.S.) = 3.78541 liters
  • 1 gallon (Imperial) = 4.54609 liters
  • 1 barrel (oil) = 42 gallons (U.S.)

What is the Tank Volume Calculator?

The Tank Volume Calculator is an easy-to-use tool designed to help you determine the volume and capacity of different tank shapes. Whether you have a cylindrical, rectangular, or spherical tank, this calculator can provide accurate results for water, fuel, and Other liquids. It's perfect for anyone who needs to calculate tank capacities for various purposes, from industrial use to home projects.

Choose Your Tank Shape

With this calculator, you can select from four main tank shapes. Each shape has its own set of inputs, allowing you to enter dimensions specific to that shape. The options include:

  • Cylindrical Tank
  • Rectangular Tank
  • Spherical Tank
  • Horizontal Cylinder

Simple Input Options

The calculator makes it easy to enter the dimensions of your tank. For cylindrical tanks, for example, you’ll need the diameter and height. Rectangular tanks require length, width, and height measurements. Each input can be entered in different units like feet, inches, meters, or centimeters. This flexibility means you can work with the measurements that are most convenient for you.

Fill Level Calculations

Another handy feature of the Tank Volume Calculator is the fill level option. You can input what percentage full your tank is or provide the actual fill height. This helps you quickly assess how much liquid is currently in the tank. Understanding the fill level is crucial for safely managing liquids, especially in industrial settings.

Advanced Liquid and Output Options

For users with specific needs, the Tank Volume Calculator includes advanced options. You can select the type of liquid you're working with, which adjusts calculations based on density. Furthermore, you can set the number of decimal places for your results and even choose to see all unit conversions. This ensures you get the information in the format that suits you best.

Visual Representation of the Tank

One of the unique aspects of this calculator is its visual representation feature. It shows a graphical display of your tank along with the fill level indicator. This visual aid helps you understand how much your tank is filled in a more tangible way, making it easier to plan for refills or manage contents effectively.

Comprehensive Volume Results

After entering all necessary data, the calculator provides detailed results. You'll find information on the total volume, filled volume, fill percentage, and even the weight of the liquid. This comprehensive output is not just informative; it allows you to make informed decisions based on the specific parameters of your tank.

Understanding Volume Calculations

Finally, the Tank Volume Calculator comes with a section explaining the formulas used for calculations. Knowing how these formulas work can help you better understand the results. Here are some formulas for common tank shapes:

  • Cylindrical Tank: V = π × r² × h
  • Rectangular Tank: V = l × w × h
  • Spherical Tank: V = (4/3) × π × r³
  • Horizontal Cylinder: A more complex calculation based on fill height