Sample Size
This hub hosts calculators that can help you in sample size determination for your research. You’ll find calculators that simplify the most common sample size formulas, such as Cochran’s, Slovin’s, and Yamane’s, among others. You’ll also find related tools such as effect size calculators, margin of error calculators, etc.
Our calculators stand out from our competitors because we not only show the answer, but also a step-by-step solution to help you learn.
If you’re carrying out a research, then this hub is for you.
Calculate sample size using Cochran’s formula for surveys and proportion studies based on confidence level, margin of error, and estimated population proportion.
Use Slovin’s formula to estimate sample size quickly when population size is known and a desired margin of error is specified.
Calculate the required sample size for surveys and research studies using key inputs such as confidence level, margin of error, and population size.
Calculate sample size with Yamane’s formula using population size and margin of error for simple survey and research planning.