Sample Size Calculator

Find Sample Size Given Margin of Error

Population Size (N) Confidence Level (Z) Margin of Error (E) Population Proportion (p) [0-1]

Result will appear here.

Note: Assumes infinite population (N > 10000); otherwise, adjusts for finite population.

Population Size (N) Confidence Level (Z) Sample Size (n) Population Proportion (p) [0-1]

Result will appear here.

Note: Assumes infinite population for calculation.