// Free Engineering Tool

Tank & Vessel Volume Calculator

Calculate the total and partial-fill volume of a cylindrical tank or pressure vessel — vertical or horizontal, with flat, 2:1 elliptical or hemispherical heads. Enter diameter, cylinder length and a liquid level to get the volume held at that level, the fill percentage and a dipstick chart. Partial-fill geometry is verified against numerical integration.

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Tank Geometry

Orientation

Head Type

Diameter

Cylinder Length

Liquid Level

Output Units

Shell + two heads. Head types: flat (none), 2:1 elliptical (dish depth = D/4), hemispherical (dish depth = D/2). Liquid level is measured from the lowest point. Partial-fill volumes use exact segment and dished-head geometry — verified numerically. Confirm against the physical vessel and gauge.

Results

Liquid Volume—

Fill Level—

Total Volume—

Ullage (empty)—

Shell Volume—

Heads Volume (2)—

Dipstick Chart — Volume by Level

Level	Volume	% Full

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