weibull.com iTools

These web tools perform some of the calculations available in ReliaSoft's Weibull++ life data analysis software. These free tools are not supported/updated by ReliaSoft and they are available "as is" without warranty of any kind.

Available iTools:

  1. Simple Weibull Analysis 
    Obtain parameters for the 2-parameter Weibull distribution, using your data. Note that the calculated value for "Eta" is displayed in the "scale parameter" box after you click Compute (even though the label is not visible in the page).
  2. Rank Calculator
    Obtain ranks given a sample size and order number.
  3. Quick Statistical Reference
    Obtain values for commonly used statistical functions.
  4. Exponential Design of Reliability Tests Calculator
    Obtain test time to demonstrate an MTBF (or reliability) assuming an exponential distribution.