Spike's Calculators

Calculate the amount of liquid inside a partial filled round hopper tank. The upper part of this tank consist out of a cylinder with a truncated funnel attached to the bottom. This calculator uses feet for measurements.

one US gallon of water = 8.34 pounds. one US gallon of diesel fuel = 7.1 pounds one US gallon of gas = 6 pounds

- enter the top diameter (A) in feet and or inches
- the cylinder part height (A) in feet and or inches
- the truncated funnel height (B) in feet and or inches
- the bottom diameter (B) in feet and or inches
- the depth of the liquid inside the tank in feet and or inches
- the weight of the liquid in pounds per US gallons

- the volume of the tank in cubic feet
- the volume of the tank in cubic inches
- the volume of the tank in cubic metres
- the total amount of liquid the tank can hold in US gallons
- amount of liquid the tank can hold in litres
- the amount of liquid inside the tank in cubic feet
- the amount of liquid inside the tank in US gallons
- the amount of liquid inside the tank in Imperial gallons
- the amount of liquid inside the tank in litres
- the amount of liquid inside the tank in hectolitres
- the weight of the liquid inside the tank based on lbs/gal US
- the amount of liquid it will take to fill this tank in US gallons

cV = 𝝅(D/2)*H fV = 1/3𝝅H((T/2)²(B/2)²) where cV is the volume of the cylinder fV the volume of the truncated funnel fV the volume of the funnel D the diameter H is the height T and B the upper and lower diameters of the funnel

one cubic foot (ft³) = 1728 cubic inches (in³) one cubic foot (ft³) = 28316846.592 cubic millimetres (mm³) one cubic foot (ft³) = 0.028316846592 cubic metres (m³) one cubic foot (ft³) = 7.48051948051947 gallons (gal) US one cubic foot (ft³) = 6.22883545904283 gallons (gal) Imperial one square foot (ft²) = 144 square inches (in²) one square foot (ft²) = 92903.04 square millimetres (mm²) one square foot (ft²) = 0.09290304 square metres (m²)