How does the Pressure Vessel Calculator work?

Thin-walled hoop stress: σ = (P × r) / t Then: Thin-walled longitudinal: σ = (P × r) / (2t) Then: Thick-walled uses complex formulas; pressure determines stress.

Can you give an example of how to use the Pressure Vessel Calculator?

Example: Input Cylinder r=200mm, t=10mm, P=5 MPa gives a result of Hoop stress ≈ 100 MPa (Governs failure mode).

Is the Pressure Vessel Calculator free to use?

Yes — completely free with no registration, download, or subscription required. All calculations happen instantly in your browser.

How accurate is the Pressure Vessel Calculator?

Our Pressure Vessel Calculator uses verified mathematical formulas and is accurate to multiple decimal places. Results are calculated in real-time using the same methods used by professionals.

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Pressure Vessel Calculator

Internal Pressure (psi)

Radius (in)

Wall Thickness (in)

Pressure vessel stress depends on pressure, geometry, and material. Proper design prevents catastrophic failure; all vessels require rigorous analysis.

Symbol	Name	Unit	Description
P	P value	—	Variable used in the calculation

Difficulty:advanced

References

›Pressure Vessel — Wikipedia

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Pressure Vessel Calculator

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Pressure Vessel Calculator