Download NCSS PASS 2026 v26.0.3 for Windows

Free download NCSS PASS 2026 v26.0.3 full version standalone offline installer for Windows PC,

NCSS PASS 2026 Overview

This software provides sample size calculations for over 370 more scenarios than any other sample size software. It is the premier software tool for determining the needed sample size or analyzing the power of a study. It is used extensively in clinical trial planning, grant proposals, pharmaceutical research, statistical and biostatistical consulting, health research, and other study planning and evaluation areas. You can estimate the sample size for a statistical test or confidence interval in a few short steps. The sample size procedure tools are easy to use and have built-in help messages for every option.

Features of NCSS PASS 2026

Power Analysis & Sample Size
Estimate the sample size for a statistical test in a few short steps
Comes complete with integrated documentation and Ph.D. statistician support
Finding the sample size procedure is easy using the drop-down menu
Helps you to enter the proper values in a sample size procedure tool
Sample size procedure tools have built-in help messages for every option
Results and corresponding plots are displayed in the output window
The format of the output makes it easy to be viewed, copy and paste, or saved

System Requirements and Technical Details

Supported OS: Windows 11, Windows 10, Windows 8.1, Windows 7
Processor: 450 MHz or faster processor
RAM (Memory): 2 GB RAM (4 GB recommended)
Free Hard Disk Space: 500 MB or more
Microsoft .NET 4.6