Free MTBF Calculator

What is ALD MTBF Calculator?

ALD MTBF Calculator is a free software tool for Reliability Prediction. You enter electronic or mechanical component data and receive predicted MTBF (Mean Time Between Failures) and Failure Rate:

MTBF Calculator

MTBF Calculator supports 26 most known and accepted reliability prediction standards listed below:
     MIL-HDBK-217E-1 Part stress, 
     MIL-HDBK-217F-1 Part count, MIL-HDBK-217F-1 Part stress, 
     MIL-HDBK-217F-2 Part count, MIL-HDBK-217F-2 Part stress
     BELLCORE Issue 5, BELLCORE Issue 6
     CNET RDF93 rev 02/95
     FIDES Guide 2004, FIDES 2009
     GJB/Z 299B Part count, GJB/Z 299B Part stress
     GJB 299C Part count and Part Stress
     IEC 62380
     Telcordia Issue 1, Telcordia Issue 2
     Siemens SN 29500-1, Siemens SN 29500-2005-1 (Siemens Norm)
     UTE C 80-810 (RDF2000)
     NSWC-98/LE1 Mechanics

The software package also contains Reliability Data Component Library for active electronic components (IC-Digital, IC-Analog, IC-Memory) and Part Number automatic recognition algorithms for the most popular manufacturers of capacitors and resistors (see user guide for manufacturers list).

Is ALD MTBF Calculator free?
MTBF Calculator is a freeware. It is absolutely free - there is no time limit or installations count limit. There is no Ads. There is no commercial version of this product. There is no subscription to newsletters. Just install and use it.

Why is it free?
ALD Reliability and Safety Solutions Ltd.
has been working in the field of reliability, safety and quality of the safety-critical and mission-critical equipment (mainly aerospace, defense, transportation and telecommunications) for more than 25 years.
We support the promotion of System Reliability and Safety and wish to make Reliability Prediction more accessible for reliability engineering practitioners and students.

How to use the MTBF Calculator for reliability prediction?
ALD MTBF Calculator is Windows Desktop application. You should download and install it on your PC with MS Windows (XP, 2000, Vista).
For usage instructions, please see the MTBF Calculator User Manual - Reliability Prediction with ALD MTBF Calculator.

Where can I get ALD MTBF Calculator?
Download it from our web site: Download Free ALD MTBF Calculator.

How to install it?
Save the installation file to your local hard drive and run it. Installation wizard will guide you through the setup process. Then run the MTBF calculator from your Start menu, "ALD Engineering" menu group. See MTBF Calculator Installation Guide for detailed setup instructions.

What if I have problems or questions?
The MTBF calculator is freeware and is provided as-is, without technical support. However we are committed to continuously improve it and therefore appreciate your comments and suggestions - please send suggestions to This email address is being protected from spambots. You need JavaScript enabled to view it. .

See also:
ALD Reliability Prediction Software 
ALD Reliability Analysis and Safety Assessment Software 
Download ALD Reliability&Safety Software