Reservoir Capacity – Cylindrical Calculator
Calculate the volume of cylindrical reservoirs, tanks, or containers in gallons and liters.
Frequently Asked Questions
The capacity of a cylindrical reservoir is calculated using the formula: Volume = π × r² × h, where r is the radius (half of diameter) and h is the height or length of the cylinder. Our calculator automatically handles the unit conversions and provides results in multiple units.
A US gallon is approximately 3.785 liters, while a UK (imperial) gallon is about 4.546 liters. This difference is important for accurate calculations depending on your location and application standards.
Yes! Simply enter the current liquid level in the optional field, and our calculator will determine the exact volume of liquid in the tank along with the remaining empty space.