This calculator helps you estimate the Sigma level of any process by using two simple inputs: the total number of opportunities and the number of defects. Opportunities refer to the total chances for something to go right or wrong – for example, the number of products produced, transactions processed, or services delivered. Defects are the instances where the process failed to meet the expected standard, such as an error, defect, or mistake.

To begin, enter the total number of opportunities in the first box. This could be something like 10,000 units produced or 5,000 invoices processed. Next, enter the number of defects found during that same period. For instance, if you produced 10,000 items and found 25 with flaws, you would enter 25.

Once you’ve entered these numbers, click the Calculate Sigma Level button. The calculator instantly applies the Six Sigma conversion formula to determine your process’s Sigma level and displays the result. The higher the Sigma level, the more efficient and consistent your process is.

If your Sigma level is lower than you’d like, this number can serve as a benchmark for improvement. By reducing defects over time and recalculating periodically, you can track progress and see how changes in your process directly impact quality performance.