Barrel Volume Calculator
Online Barrel Volume Calculator that calculates the volume of a barrel given the height and radii.
Barrel Volume Calculation

Middle radius

Top and Bottom radius

Height

volume
Volume of Barrel = (h * PI * (2* r1 ^{2} + r2^{2}) / 3 )
Where,
H = Height of the barrel
r2,r2 = Radii of the barrel
A barrel is one of several units of volume, with dry barrels, fluid barrels (UK beer barrel, U.S. beer barrel), oil barrel, etc. The volume of some barrel units is double others, with various volumes in the range of about 100 to 200 litres.