Calculate Sample Size Now
Use GLIMMPSE to calculate power or sample size. GLIMMPSE is an open-source online tool for calculating power and sample size. It’s been designed so that researchers and scientists with varying levels of statistical training can have access to reliable power and sample size calculations.

Temporarily available

GLIMMPSE V2

– GLIMMPSE V2 is no longer supported, but will be temporarily available while version 3 makes its debut.
– GLIMMPSE V2 JSON files should typically work in version 3; however, if you find that your version 2 JSON file is not working in version 3, please contact us and we can assist you.

Calculate with the previous version of GLIMMPSE

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