G*Power is a free-to use software used to calculate statistical power. The program offers the ability to calculate power for a wide variety of statistical tests including t-tests, F-tests, and chi-square-tests, among others. Additionally, the user must determine which of the many contexts this test is being used, such as a one-way ANOVA versus a multi-way ANOVA. In order to calculate power, the user must know four of five variables: either number of groups, number of observations, effect size, significance level (α), or power (1-β). G*Power has a built-in tool for determining effect size if it cannot be estimated from prior literature or is not easily calculable.
This statistics-related article is a stub. You can help Wikipedia by adding missing information.
What is G*Power?
G*Power by Heinrich Heine University Düsseldorf - Cognitive and Industrial Psychology is free Windows software in the science & maths category. It ranks 44th by popularity among science & maths in this catalogue.
Installation and requirements
The publisher provides Portable installers for 32-bit Windows. It runs without installation (portable).
Popularity and file types
The Chocolatey package has been downloaded 5,275 times. Wikipedia has an article about it in 3 of our languages. Similar programs include Stellarium, KiCad and Quarto.
Pros / Cons
Pros
- Free to use
- Portable: runs without installation
Cons
- No native ARM64 build
- 32-bit only
- No update for more than a year
In short: G*Power is a free science & math tool for 32-bit PCs. Updates have slowed down.
Screenshots
Is G*Power safe to download?
- The file is served by psychologie.hhu.de, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
3BB7F1F2478D74EE5BA701AE7F849373CF2B8A11F6B6216C7C6B236DB7861199· Open the VirusTotal report for this hash - The link answered when we last checked it (October 22, 2026)
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 1 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 3.1.9.7Latest | May 17, 2020 | — | 32-bit ZIP |
Install from the command line
Silent install ›winget install --id GPower.GPower -echoco install gpower -yRelated guide: How to use winget: install and update apps
Information
- Publisher
- Heinrich Heine University Düsseldorf - Cognitive and Industrial Psychology
- Category
- Science & maths
- Licence
- Freeware
- Price
- Free
- Requires
- Windows 11 / 10
- Architecture
- 32-bit
- Installer
- Portable
- Version
- 3.1.9.7
- Released
- May 17, 2020
- Added to the catalogue
- November 13, 2024
- Versions listed
- 1
- Chocolatey downloads
- 5,275
- Website
- psychologie.hhu.de
- winget ID
- GPower.GPower
- Chocolatey package
- gpower
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is G*Power free?
Yes. G*Power is free to use.
Is G*Power safe to download?
The download comes from psychologie.hhu.de, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install G*Power with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Does G*Power run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 32-bit version through emulation.
Can I use G*Power without administrator rights?
Yes, it is portable: unpack and run it.
What are alternatives to G*Power?
Stellarium, KiCad, Quarto, JASP and Qalculate!. The alternatives page compares them.
