**MTBF Calculator:**

Mean time between failures (MTBF) is the mean (average) time between failures of a system, the reciprocal of the failure rate in the special case when the failure rate is constant. Calculations of MTBF assume that a system is ‘renewed’, i.e. fixed, after each failure, and then returned to service immediately after failure. A related term, mean distance between failures, with a similar and more intuitive sense, is widely used in transport industries such as railways and trucking. The average time between failing and being returned to service is termed mean down time (MDT).

**MTBF Calculator Use In:**

• MTBF (Mean time between failures) Calculation

• FIT (Failure in time) Calculation

• COST (Overall system cost) Calculation

• Developments, Productions, and Services

• Quality Control and Design Shortcomings

• Care Planning and Parts Replacement Strategies

• Spare Parts Stock Estimates

• Warranty Period Analysis

• Polimore Fault Tree Analysis

• Polimore Fault Tree Graphics

• MTBF Calculation of System/Product

• MTBF Calculation of Components

• MTBF Calculation of Fault Tree

• MTBF Calculation of Sub-Nodes

• Hybrid MTBF Calculation

A handy tool that calculates mean time between failures (**MTBF**), Failure In Time (**FIT**), Overall System Cost (**COST**) of a product or system.

**Software (Applications):**

Online MTBF Calculator

MTBF Calculator 1

MTBF Calculator 1.0

**Documents:**

• MTBF Calculation Tutorial | Short User Guide | MTBF Calculator Manual

• How-To Product-Sharing: REDBACK-EYES-100S

• How-To Component-Sharing: LT8410 OPR2800 MAX803L KEL1001L TSL250R

**RSS Feeds:**

Electronic Mechanic Organic Chemical Solid Liquid

**Fault Tree Analysis (FTA) Samples:**

**Sample 3 (Security Unit):**