# Hemisphere Dome Tank - Feet

Calculate the volume of a dome-shaped tank/container that has the shape of a hemisphere (half sphere).

Half of the length's base equals the height in this type of tank. This calculator uses feet for measurements.

##### Approximate weight of Fuel or Water

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

#### Calculator

- enter the tank's base length in feet
- the weight of the liquid in pounds per US gallon

#### Results

- the volume of the tank in cubic feet
- volume in cubic inches
- volume in cubic metres
- tank capacity in US gallons
- capacity in Imperial gallons
- capacity in litres
- weight of the liquid when the tank is full
- the surface area of the tank in square feet
- the surface area in square inches
- the surface area in square millimetres
- the surface area in square metres

##### Formula

V = 2/3Πr³
where V is the volume
Π = 3.14159265
r half the length of the tank base

##### Conversions

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)

### Hemispherical Shaped Dome Tank/Container (Half Sphere)

#### Filled

#### Partial Filled