» Sample Size Calculator

Versions:

Sample Size Calculator (spreadsheet)

The spreadsheet version of the calculator. The latest is version 2.0.

Sample Size Calculator (web)

The web version of the calculator. This is under continuous development.

LLM-ready sample size formula (GitHub)

LLM-ready sample size formula in JS, with SKILL.md for agent use. Visit the site for instructions on how to use it.

Sample Size Calculator by Wan Nor Arifin is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

© Wan Nor Arifin 2017-