The work they've produced for me has been absolutely top notch, and they delivered precisely the results we wanted. Beyond that, they have an eye for doing things creatively, differently, better.

– Miller Brewing Company

Sample Size Calculator

Sample Size Calculator

Population Size
Margin of Error
» Calculate
Sample Size

The Omnibus Company’s Sample Size Calculator allows you to determine the number of interviews required to attain any particular margin of error. Simply enter the margin of error you are comfortable with and the Sample Size Calculator will determine the precise number of interviews necessary to obtain any margin of error.

The sample size expressed by the Omnibus Company’s calculator determines your sample size at the 95% confidence level for a study conducted among a random sample, or a probability sample.