Spike's Calculators

Elliptical Cylinder Tank - Millimetres

Elliptical Cylinder Tank

Calculate the volume and capacity of a elliptical cylinder tank.

Essentially, this elliptical tank is a squashed circle standing on edge. The width has to be smaller than the height of the tank. This calculator uses millimetres for measurements.

Approximate weight of Fuel or Water
one litre of water = 1 kilogram
one litre of diesel fuel = 0.832 kilogram
one litre of gas = 0.75 kilogram

Note: measurements used in the calculation are diameter lengths, not radius lengths!

Elliptical Cylinder Tank - Millimetres

Diameter A mm
Diameter B mm
Height of the Tank mm
Liquid Weight-Pounds per US Gallon kg/L


Tank Volume
In Cubic Millimetres mm³
In Cubic Metres
In Cubic Feet ft³
Tank Capacity
In Litres L
In US Gallons gal US
In Imperial Gallons gal Imperial
Weight of Liquid kg


  1. enter diameter A of the tank in millimetres
  2. diameter B of the tank in millimetres
  3. the height of the tank in millimetres
  4. the weight of the liquid in kilograms per litre


  1. the volume of the elliptical cylinder tank in cubic millimetres
  2. the volume in cubic metres
  3. the volume in cubic feet
  4. the capacity in litres
  5. the capacity in US gallons
  6. the capacity in Imperial gallons
  7. full tank liquid weight based on kilograms/litre

V= 𝝅HWL/4
where V is the volume
𝝅 = 3.14159265
H is the height of the tank
W half of diameter B
L half of diameter A
one cubic millimetre (mm³) = 0.000000001 cubic metres (m³)
one cubic millimetre (mm³) = 0.0000000353146667214886 cubic feet (ft³)
one cubic millimetre (mm³) =  0.000001 litres (L)
one cubic millimetre (mm³) = 0.000000264172052358148 gallons (gal) US
one cubic millimetre (mm³) = 0.000000219969248299088 gallons (gal) Imperial

Ellipse - Vertical Tank/Container

Vertical Elliptical

Partial Filled

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