Advanced Statistical Power and Sample Size Calculator – MySampleSize

MySampleSize is a tool designed to help researchers design their studies with a strong statistical background. We provide easy-to-use statistical calculators that are relevant to experimental design, as well as printable reports to use in your grant proposals.

This tool can also be used as a teaching method to explore the trade off between statistical power and subject sample size, and to simulate experiment outcomes.
Statistical Power and Sample Size – A Simple Calculator
Pricing
We provide a 24 hour trial period for you to determine if MySampleSize is right for you! We have no-fuss monthly and yearly subscriptions as well as group discounts for teams of users.