ByWet

Water Tank Volume Calculator

Estimate the storage capacity of your water tank.

Understanding Water Tank Volume

Whether for residential rainwater harvesting, agricultural irrigation, or industrial applications, accurately determining the volume of a water tank is a fundamental first step. This calculator simplifies the process for the two most common tank shapes: rectangular and cylindrical. Knowing your tank's capacity is crucial for system design, water management, and ensuring you have an adequate supply for your needs.

Formulas Used in This Calculator

Rectangular Tank

Volume = Length × Width × Height

Cylindrical Tank

Volume = π × Radius² × Height

Frequently Asked Questions

How do you calculate the volume of a water tank?

To calculate the volume of a rectangular tank, you multiply its Length × Width × Height. For a cylindrical tank, you use the formula Volume = π × radius² × Height. Our calculator does this automatically for you in your preferred units.

How many gallons of water can a tank hold?

The capacity in gallons depends on the tank's volume. After calculating the volume in a cubic unit (like cubic feet or meters), you convert it. For example, one cubic foot holds approximately 7.48 gallons, and one cubic meter holds about 264 gallons. This calculator provides the conversion to both gallons and liters automatically.