Defect Rate Calculator

Formula

The formula to calculate the Defect Rate is:

\[ \text{Defect Rate} = \left( \frac{\text{Total Number of Defects}}{\text{Total Number of Units Tested}} \right) \times 100 \]

Where:

Total Number of Defects is the number of defects observed in the product.
Total Number of Units Tested is the total number of units tested for defects.

What is Defect Rate?

A defect rate is defined as the total percentage of defects observed in a product per unit of the product tested. There are two different ways to look at the defect rate:

Product is simply defective or not: Any defect in the product would make the entire product defective.
Each product can have more than one defect: This method helps in determining the causes of defects in products and their severity.

Example Calculation

Let's consider an example:

Total Number of Defects: 15
Total Number of Units Tested: 500

Using the formula to calculate the Defect Rate:

\[ \text{Defect Rate} = \left( \frac{15}{500} \right) \times 100 = 3\% \]

This means that the defect rate for this scenario is 3%.