Storage Tank Capacity And Tonnage Calculator

Use the storage tank calculator below to determine your storage tank’s capacity and the tonnage of the product stored.

Enter the diameter, fill height**, and cone height of the tank below and click the calculate button to determine the capacity.  To receive the tonnage of the product stored, also enter the specific gravity of the product that will be stored in the tank.

**If your tank has a de-rated fill height, use the de-rated height to determine the capacity of the tank.


Diameter (feet)

Maximum Fill Height (feet)

Cone Height (inches)

Product Specific Gravity

*Assumes cone slope is 1":10'


Common size tanks for liquid fertilizer storage

Size Gallons Size Gallons
30'x32' 169,194 73'x32' 1,001,816
40'x32' 300,789 90'x32' 1,522,746
52'x32' 508,334 104'x32' 2,033,336
63'x32' 746,145 128'x32' 3,080,082

DISCLAIMER: This storage tank capacity calculator is for general information purposes only, and we make no representations or warranties of any kind, express or implied, about the accuracy or reliability of the results. You should consult with a professional, such as a Heartland Tank Services representative or an engineer, to specifically determine the actual storage and tonnage capacity of your specific liquid storage tank. In no event will we be liable for any loss or damage, direct, indirect, or consequential, in connection with the use of this storage tank calculator.

Specific gravity list for common products

Liquid SG Value
Water 1.00
Sea Water 1.02
28% Nitrogen Solution 1.28
32% Nitrogen Solution 1.33
10-34-0 1.41
11-37-0 1.44
7-17-3 (RiseR) 1.27
Crude Oil 0.82-0.97
Gasoline a 0.74
Gasoline b 0.72
Gasoline c 0.68
Molasses A first 1.40-1.46
Molasses B second 1.43-1.48
Molasses C blackstrap 1.46-1.49
Liquid Ammonia (100%) 0.662
Diesel Fuel 2D (0.865)/3D/4D/5D 0.81-0.96
Ammonium Thiosulfate Solution 1.32-1.35
Anhydrous Ammonia 0.62
Olive Oil 0.919
Pitch 1.11
Tar 1.2
Asphaltum 1.3