Hose, Tubing & Fluid Conveyance Products calculator

Burst Pressure Margin Calculator

Compare hose burst pressure against the minimum required. The margin shows headroom above the minimum, in psi and as a percent. Most hydraulic hose standards require burst pressure to be at least four times working pressure.

What this calculator does

  • Check burst pressure margin for a hose or tubing assembly by comparing actual or rated burst pressure against the required minimum burst pressure.
  • Use it when reviewing hose assembly qualification data, comparing hose specifications, or confirming a hose meets the required safety factor over working pressure.
  • Checks whether a hose assembly burst pressure meets the minimum requirement and shows the margin above the minimum.

Formula used

  • Burst pressure margin = hose burst pressure - minimum required burst pressure
  • Burst pressure margin percent = burst pressure margin / reference burst pressure x 100

Inputs explained

  • Hose burst pressure (rated or tested): Rated burst pressure from the spec sheet, or actual burst test result for this hose assembly.
  • Minimum required burst pressure: Minimum acceptable burst pressure per the applicable standard or four times maximum working pressure.
  • Reference burst pressure: Use minimum required burst pressure as the reference to normalize the margin percent.

How to use the result

  • Use it during hose assembly qualification, specification comparison, or incoming material review.
  • It compares pressures numerically. It does not validate end fitting integrity, crimped pull-out strength, temperature derating, or compliance with a specific hose standard.

Common questions

  • What is the Burst Pressure Margin calculator for? It checks whether a hose or assembly burst pressure meets the required minimum, and shows the psi and percent margin above the minimum.
  • What numbers do I need before using it? You need the hose rated or tested burst pressure and the minimum required burst pressure from the applicable standard or safety factor rule.
  • How should I use the result? Use the margin to decide whether the hose is suitable and provides adequate safety factor over working pressure.
  • When is the result only an estimate? It is an estimate when rated burst pressure is used instead of actual test data, or when temperature or fitting integrity affects actual burst strength.

Last reviewed 2026-05-12.