### Welcome to our Free MTBF Calculator page!

If you're looking for a reliable and user-friendly tool to calculate the Mean Time Between Failures (MTBF) of your products, you've come to the right place.

Our MTBF calculator is a powerful tool that allows you to quickly and accurately estimate the reliability of your products. It uses a variety of industry-standard methods and algorithms to calculate MTBF, such as the MIL-HDBK-217F, Telcordia SR-332, FIDES and more standards.

With our MTBF calculator, you can easily calculate the MTBF of your products based on their design parameters and operating conditions. This can help you make informed decisions about product design and improve product reliability, which is crucial for reducing warranty costs and improving customer satisfaction.

Our MTBF calculator is completely free and easy to use. Simply enter the required parameters such as the number of components, operating temperature, and stress factors, and the calculator will generate an accurate MTBF estimate.

In addition to our MTBF calculator, we also provide a wealth of information and resources on product reliability and MTBF calculations. You can browse our site to learn more about reliability engineering, reliability prediction methods, and best practices for improving product reliability.

So why wait? Try our free MTBF calculator today and start improving the reliability of your products!

### 5 Steps of Reliability Prediction and MTBF/FR Calculation

1. Select Component Family and Type

2. Select Reliability Prediction Method

3. Select Environment and Temperature

4. Enter Component Parameters

5. Get MTBF and FR

STILL CALCULATING MTBF IN EXCEL?

### Reliability Prediction Standards

ALCATEL

ANSI/VITA 51.1

BELLCORE Issue 5, BELLCORE Issue 6
BRITISH TELECOM HRD4, BRITISH TELECOM HRD5

CNET RDF93 rev 02/95
FIDES Guide 2004, FIDES 2009

FIDES 2009 Families count

FIDES 2009 Parts count
GJB/Z 299B Part count, GJB/Z 299B Part stress

GJB 299C Part count and Part stress
HRD5 TELECOMM
IEC 62380
ITALTEL IRPH93

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

HDBK-217Plus
NPRD-95, NPRD-2011, NPRD-2016

Telcordia Issue 1, Telcordia Issue 2

Telcordia Issue 3, Telcordia Issue 4
Siemens SN 29500-1

Siemens SN 29500-2005-1 (Siemens Norm)

Siemens SN 29500-2016
UTE C 80-810 (RDF2000)
NPRD-95
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).

YOU DON'T NEED TO KNOW MTBF FORMULA OR MTTR FORMULA IN EXCEL!

### Questions About Free MTBF Calculation Software

Is ALD MTBF Calculator free?

MTBF Calculator is a freeware calculator. It is absolutely free - there is no time limit or installations count limit. Download, 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 over 30 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 it for reliability prediction?

ALD MTBF Calculator is Windows Desktop application. You should download and install it on your PC with MS Windows. For operational instructions, please see the MTBF Calculator User Manual - Reliability Prediction with ALD MTBF Calculator.

Where to get it?

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 a freeware tool 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 them to This email address is being protected from spambots. You need JavaScript enabled to view it. .