This calculator calculates the height of liquid inside a Horizontal Cylindrical Container with Ellipsoidal Ends for any given volume of liquid. The Maximum Volume of Container is also calculated. The other required values are the Diameter of Cylinder, Straight Length, and the Distance X of ellipsoidal end. For a tank with an ellipsoidal end of 2:1 ratio use a Distance X that is one fourth the Diameter of Cylinder. For a tank with hemispherical ends use a Distance X that is one half the Diameter of Cylinder. For a flat end tank input zero for Distance X. For an ellipsoidal tank with no Straight Length input zero for Straight Length.