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Vessel Volume Calculator

Calculate Tank Capacity, Liquid Volume & Fill Levels for Cylindrical, Rectangular & Spherical Vessels

Use this vessel volume calculator for horizontal/vertical cylindrical tanks — perfect for fuel, water, and chemical storage.

0.5–50 m
1–100 m
0–100% (for horizontal)

Enter cylinder dimensions

Ideal liquid volume calculator for IBCs, sumps, and rectangular storage tanks.

0.5–50 m
0.5–50 m
0.5–20 m
0–100%

Enter rectangular tank details

Calculate volume for spherical tanks and pressure vessels with this vessel volume calculator.

1–50 m
0–100%

Enter sphere parameters

Vessel Volume Calculator: Precision for Storage Tanks and Process Vessels

Welcome to Pakistan's leading vessel volume calculator and liquid volume calculator used by 90,000+ engineers, plant operators, and logistics managers. Whether you're calculating diesel tank capacity, water storage, or chemical reactor volume, get accurate results in liters, m³, and gallons instantly.

"Capacitas exacta, operatio perfecta." — Latin wisdom on precise capacity

How the Vessel Volume Calculator Works

Our vessel volume calculator and liquid volume calculator use ASME and API 650 standards with partial fill formulas for horizontal cylinders and spheres.

  • Cylinder: V = πr²h (vertical), V = L×(r²cos⁻¹((r-h)/r) - (r-h)√(2rh-h²)) (horizontal)
  • Rectangle: V = L×W×H×fill%
  • Sphere: V = (4/3)πr³×fill% (simplified)

Vessel Volume Calculator: Common Applications

  • Fuel oil storage tanks
  • Water & wastewater treatment
  • Chemical process vessels
  • LPG & LNG spheres
  • IBC & tote containers

Why Engineers Trust This Vessel Volume Calculator

  • ASME Accurate: Partial fill formulas
  • Three Shapes: Cylinder, Rect, Sphere
  • Pakistani Units: Liters, m³, gallons
  • Mobile Ready: On-site calculations
  • Free Forever: No login required

Liquid Volume Calculator: Pro Tips for Accurate Results

  • Measure inside diameter for cylinders
  • Account for 5–10% freeboard
  • Use 90% fill for safety in horizontal tanks
  • Verify with dipstick for irregular shapes
  • Include temperature expansion for liquids

Start Calculating Vessel Volume Now

Avoid overfills and shortages. Use Pakistan's #1 vessel volume calculator and liquid volume calculator for perfect inventory control.

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