Reliability Toolkit

Weibull Reliability and B-Life Calculator

Evaluate a two-parameter Weibull life model using shape parameter beta and characteristic life eta, including a selected B-life percentile.

How to use it

Inputs that remain auditable.

  1. 01

    Enter beta and eta in consistent time units.

  2. 02

    Enter the time at which reliability is required.

  3. 03

    Choose a failure percentile such as B10 to obtain that life value.

Questions

Frequently asked

What does beta mean?

Beta controls Weibull shape: values below, near or above one can represent decreasing, approximately constant or increasing hazard behaviour respectively.

What is B10 life?

B10 is the time by which the Weibull model predicts 10% cumulative failures, equivalently 90% reliability.