If you wish to calculate the gallon capacity of various sized
structures, enter the height of the structure (feet) below.The gallons will be calculated in the
charts below.

feet

Round Structures

Vault Structures

Diameter

Gallons

Size

Gallons

4' DIA

26"x36"

5' DIA

3'x3'

6' DIA

31"x58"

7' DIA

4'x4'

8' DIA

4'x6'

10' DIA

4.5'x8.5'

5'x5'

6'x6'

6'x8'

6'x12'

8'x10'

Height
requirement to hold certain gallon capacity

If you wish to calculate the height required (feet) to hold a
certain gallon capacity, enter the number of gallons below:

gallons

Round Structures

Vault Structures

Diameter

Height

Size

Height

4' DIA

26"x36"

5' DIA

3'x3'

6' DIA

31"x58"

7' DIA

4'x4'

8' DIA

4'x6'

10' DIA

4.5'x8.5'

5'x5'

6'x6'

6'x8'

6'x12'

8'x10'

Gallon
capacity of custom rectangular structures

If you wish to calculate the gallon capacity of custom sized
rectangular structures, enter the appropriate dimensions below:

Dimension

Feet

Gallon
Capacity

Length

"0"

Width

Height

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