Sample Size (Inspection) Calculator

Calculate inspection sample size based on confidence level and expected defect rate.

Dimensional measurement of the item.
pieces
Enter the confidence level value for this calculation.
%
Enter the margin of error value for this calculation.
%
The speed or frequency at which something occurs.
%

Results

Required Sample Size:
Recommended size based on calculations.
-pieces
Inspection Percentage:
Value expressed as a rate (per unit).
-%
Finite Population Adjusted:
Calculated finite population adjusted based on your inputs.
-pieces
Reference: Industry Standards.