Suitable for both sieve (dry/wet) and laser granulometry data.
GradiStat is an incredibly useful tool, but it is not the only game in town. As Excel evolves, legacy macro-based tools can become less stable, particularly on newer operating systems. Several modern, free, and open-source alternatives have emerged.
The tool operates as a macro-enabled , making it highly accessible and easy to integrate into existing workflows. Key Features gradistat v 91 free
Displays sigmoidal curves mapped against sieve apertures to visually determine percentile values like D10cap D sub 10 D50cap D sub 50 (median), and D90cap D sub 90
The original website ( www.kpal.co.uk ) no longer hosts the software. The developers have retired or moved on. However, the software was released as freeware for academic and non-commercial use. No one currently holds exclusive distribution rights, but the original license remains in force. Suitable for both sieve (dry/wet) and laser granulometry
Because the original v 9.1 is no longer supported, the geoscience community has created "forks" and improvements:
You can download the software for free from the Kenneth Pye Associates Ltd (KPAL) website . It includes full instructions and is widely cited in geological and environmental research. GRADISTAT software - Kenneth Pye Associates Ltd The developers have retired or moved on
The best part about Gradistat is that it is typically distributed as "freeware" for academic and non-commercial use. Researchers and students can usually find the official download through university repositories or the author's academic affiliations.