Calculate Defect Rate
Result—
Formula
Defective Units / Total UnitsExcel formula
=IFERROR(B2/C2,0)Power BI DAX measure
Defect Rate =
DIVIDE(
[Defective Units],
[Total Units]
)KPI calculator
Defect Rate Calculator
Enter your values to calculate Defect Rate. Use the formula and examples below for Excel, Google Sheets, Power BI, and dashboards.
Affiliate resources
Ideas for You
Useful learning resources related to this page. As an Amazon Associate, this site may earn from qualifying purchases at no extra cost to you.
Defect Rate books
Books that help you understand Defect Rate and related business metrics more deeply.
Explore resources →
Defect Rate audiobooks
Audiobook searches for learning Defect Rate while commuting, walking, or working.
Explore resources →
Lean Six Sigma resources
Excel-focused resources for building KPI trackers and dashboard workflows.
Explore resources →
Supply chain analytics
Practical resources for turning Defect Rate into reports, dashboards, and business decisions.
Explore resources →