Sample Size Calculator

Confidence Level 70% 75% 80% 85% 90% 95% 98% 99% 99.9% 99.99% 99.999%

Margin of Error

Population Proportion Use 50% if not sure

Population Size Leave blank if unlimited population size.

Confidence Level 70% 75% 80% 85% 90% 95% 98% 99% 99.9% 99.99% 99.999%

Sample Size

Population Proportion

Population Size Leave blank if unlimited population size.