United States calculator
Calculate total and partial vessel volume
Calculate total and partial liquid volume for vertical or horizontal cylindrical vessels with flat or hemispherical end heads using U.S. gallons.
Vertical/horizontal • flat/hemispherical heads
Calculator inputs
Vessel Volume and Liquid Level Calculator results
How this Vessel Volume and Liquid Level Calculator works
Cylinder volume is combined with the selected head volume. Vertical fill uses height segments; horizontal fill uses the circular-segment area multiplied by cylinder length, with head fill approximated by the same fractional depth.
Important: This is a geometric estimate. Nozzles, internals, wall thickness, dished-head geometry and vessel tilt can change usable capacity.
What assumptions should I verify?
Verify every entered quantity, rate, unit, product specification and local requirement before relying on the estimate. U.S. conventions are primary where location matters.
Is information sent anywhere?
No. Calculations run locally in the browser and this calculator sends no entered information to a remote service.