Sample Size Calculator
The Sample Size Calculator guides you step-by-step to find the right sample design for your research. Use the calculator to create powerful, cost-effective survey sampling plans.
- Find the optimum design (most precision, least cost).
- See how sample size affects cost and precision.
- Compare different survey sampling methods.
- Assess statistical power and Type II errors.
In each section, provide the data requested. The calculator does the rest. It crunches numbers and generates an easy-to-understand report that summarizes key findings, describes the analysis, and documents calculator inputs.