MTBF to FIT Calculator

Formula

The formula to convert MTBF to FIT is:

$FIT = \frac{1,000,000,000}{MTBF}$

Where:

$FIT$ is the number of failures that can be expected per billion hours of operation
$MTBF$ is the Mean Time Between Failures in hours

MTBF: Mean Time Between Failures, a reliability metric representing the average time between system breakdowns or failures. It is commonly used in various industries to predict the reliability and performance of products over time. A higher MTBF indicates better reliability.
FIT: Failure In Time, a unit of measure representing the expected number of failures per billion hours of operation. It is used to express the reliability of components, especially in the electronics industry, where high volumes and long operational hours are common.

Let's say the Mean Time Between Failures (MTBF) is 500,000 hours. Using the formula:

$FIT = \frac{1,000,000,000}{500,000}$

We get:

$FIT = 2000 \, \text{failures per billion hours}$

So, the FIT is 2000 failures per billion hours.