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# Barrel Volume Calculator

Enter the middle, top, and bottom radius, and height to find the volume of barrel using barrel calculator.

Table of Contents:

Barrel volume calculator is an online tool that calculates the volume of barrel by using radius and height of a barrel. It determines the barrel capacity at one click.

## Barrel volume formula

The volume of a barrel can be found using the below equation.

**Volume of barrel = πh(2R**^{2} + r^{2})/3

Where,

** h** = height of barrel,

** R **= middle radius,

** r** = top and bottom radius.

## How to calculate volume of a barrel?

To find barrel volume, follow the below example.

*Example:*

Find the volume of a barrel if its height is ** 2 ft,** top and bottom radius is

**and middle radius is**

*0.4 ft,*

*0.8 ft.***Solution:**

**Step 1: **Identify the values.

*h = 2 ft, r = 0.4 ft, R = 0.8 ft*

**Step 2: **Place the values in barrel volume formula.

*V = πh (2R*^{2} + r^{2})/3

*V = 3.14159 × 2 (2 × 0.8*^{2} + 0.4^{2})/3

*Volume of barrel = 3.016 cubic feet*

If you want to calculate how many gallons are in a barrel, multiply the volume in cubic feet with *7.480507.*