Sampling Error Calculator for 99% Confidence Interval (p ≤.01)

Calculate the estimated maximum sampling error for a given sample size.  Enter the size and click the "Calculate!" button.  You can perform the calculation for several sample sizes and compare the differences in the Comparison List.  The results are displayed at the 99% confidence interval (Z = 2.57).


Enter Sample Size:     

The estimated maximum sampling error with a sample size of is

Comparison List


Wimmer Research