Enter the number of failures and the total time (hrs) into the FIT Rate Calculator. The calculator will evaluate the FIT Rate.
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FIT Rate Formula
The following two example problems outline the steps and information needed to calculate the FIT Rate.
FIT = F/T * 10^9
- Where FIT is the FIT Rate (failures per one billion device hours)
- F is the number of failures
- T is the total time (hrs)
To calculate the FIT rate, divide the number of failures by the total time, then multiply by 1 billion.
How to Calculate FIT Rate?
The following example problems outline how to calculate FIT Rate.
Example Problem #1:
- First, determine the number of failures.
- The number of failures is given as: 3.
- Next, determine the total time (hrs).
- The total time (hrs) is provided as: 100,000.
- Finally, calculate the FIT Rate using the equation above:
FIT = F/T * 10^9
The values provided above are inserted into the equation below and computed.
FIT = 3/100,000 * 10^9 = 30,000 (failures per one billion device hours)
Example Problem #2:
For this problem, the variables required are provided below:
number of failures = 6
total time (hrs) = 200,000
Test your knowledge using the equation and check your answer with the calculator..
FIT = F/T * 10^9 = ?
