Pressure Vessel Calculator
Calculate wall thickness and stress for cylindrical pressure vessels
About this calculator
The Pressure Vessel Calculator is an essential engineering tool that determines the required wall thickness and calculates stress levels for cylindrical pressure vessels. This calculator helps engineers and designers ensure their pressure vessels meet safety standards and regulatory requirements by applying established mechanical engineering formulas. Whether you're designing boilers, storage tanks, or industrial pressure systems, this tool provides accurate calculations to prevent structural failure and maintain operational safety in high-pressure applications.
How to use
Enter the internal pressure, vessel diameter, and material properties (allowable stress) into the calculator. Select your preferred units and calculation method (thin-wall or thick-wall theory). The calculator will instantly compute the minimum required wall thickness and maximum stress values, helping you design safe and compliant pressure vessels.
Frequently asked questions
What's the difference between thin-wall and thick-wall calculations?
Thin-wall theory applies when wall thickness is less than 1/10 of the radius. Thick-wall theory is used for thicker walls where stress variation across thickness matters.
What safety factors should I consider?
Most pressure vessel codes require safety factors of 2.5-4 times the working pressure. Always consult applicable codes like ASME BPVC for specific requirements.
How do I determine allowable stress for my material?
Allowable stress depends on material grade, temperature, and applicable code. Refer to ASME Section II material properties or consult engineering standards for your specific application.