Calculate the Volume of Liquid in the Tank Sketched Below

Need to find out how much liquid is in your tank? Select the shape of your tank from the options below, enter its dimensions, and our tool will instantly calculate the total capacity and the current volume of liquid. Accurate results for industrial, agricultural, and residential tanks.

Step 1: Select Your Tank Shape

Choose the shape that matches your tank to get started with the calculation

h
Vertical Cylinder
Upright cylindrical tanks for water storage, fuel, and chemicals
L
Horizontal Cylinder
Horizontal cylindrical tanks commonly used for fuel storage
hw
Rectangle/Cuboid
Rectangular tanks for aquariums, water storage, and industrial use
wh
Horizontal Oval
Oval-shaped tanks for heating oil and specialized storage

Common Tank Shapes

Vertical Cylinders
Most common for water storage, chemical processing, and residential applications

These upright tanks are space-efficient and easy to fill from the top. Common in municipal water systems and industrial facilities.

Horizontal Cylinders
Underground fuel storage and large-capacity liquid storage

Structurally strong and stable, these tanks are ideal for underground installation and high-volume storage applications.

Rectangular Tanks
Aquariums, water treatment, and custom installations

Simple geometry makes these tanks easy to calculate and manufacture. Popular for specialized applications and tight spaces.

How to Calculate Tank Volume

Calculating tank volume requires using the correct geometric formula for each specific shape. The key is understanding the difference between total tank capacity and the current volume of liquid based on the liquid depth or height.

Total Capacity

The maximum volume when the tank is completely full. This is calculated using the tank's full dimensions and geometric formula.

Current Liquid Volume

The actual amount of liquid currently in the tank, calculated based on the measured liquid depth or height.

Units of Measurement

Our calculators support multiple units including US Gallons, Imperial Gallons, Liters, Cubic Feet, and Cubic Meters. Always ensure you're using consistent units for all measurements to get accurate results.

Practical Applications

Agriculture

  • • Water storage for irrigation systems
  • • Fertilizer and chemical storage tanks
  • • Milk storage in dairy operations
  • • Grain storage silos (dry volume)
  • • Livestock water troughs

Residential

  • • Heating oil tanks
  • • Rainwater harvesting systems
  • • Swimming pool volume calculations
  • • Aquarium capacity planning
  • • Septic tank sizing

Industrial

  • • Chemical storage and processing
  • • Water treatment facilities
  • • Fuel storage for generators
  • • Manufacturing process tanks
  • • Waste water collection systems

Meet the Author

Dr. Alistair Finch, P.E.

Dr. Alistair Finch is a Senior Mechanical Engineer with over 15 years of experience specializing in fluid dynamics and industrial process engineering. With a Ph.D. in Mechanical Engineering from Georgia Tech, Alistair has designed and optimized fluid storage and transport systems for the agricultural, chemical, and energy sectors.

His passion for making complex engineering principles accessible led him to create this suite of calculators, aiming to provide both professionals and homeowners with accurate, easy-to-use tools for their volume calculation needs.

Learn More About Dr. Finch

Frequently Asked Questions About Tank Volume