Sample Size Calculator
The Sample Size Calculator helps you find the right sample design for your research, in just a few steps.
In each section, provide the data requested. The Calculator does the rest. It documents inputs, analyzes data, reports key findings, and
describes the analysis - all in clear, easy-to-understand language.
If anything is unclear, refer to the Frequently-Asked Questions.
Problem Definition
The first step in sample planning is to describe the research you are conducting.
Sampling method
Parameter of interest
Purpose of research
Frequently-Asked Questions
Instructions: To find the answer to a frequently-asked
question, simply click on the question.