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# Barrel Calculator

Input the top, middle, bottom radius, and height in the respective boxes, press the* calculate* button to get the volume of the barrel using the barrel calculator

Table of Contents:

## Formula

**Formula for Volume of Barrel:**

**Volume of Barrel = **(h * PI * (2* r1^{2} + r2^{2}) / 3 )

**Where,**

h = Height of the Barrel

r1, r2 = Radii of the Barrel

The barrel is roughly cylindrical in shape except that it is bulged outwards in the middle. The barrel calculator calculates the volume of a barrel. The volume of a Barrel can be calculated by the given height and radii.