Helpers

Effect-size calculator

Quick conversions for the formats papers most commonly report in. Fill in what the study reports, copy the number the app expects. Everything runs locally in your browser — nothing is saved.

Mean & SD from reported statistics

Convert median + IQR, median + range, or SEM + n into a mean and SD suitable for the Pairwise-Continuous module.

MedianQ1 (lower quartile)Q3 (upper quartile)Sample size (n)

Result

Mean10.0000

SD4.5798

Formulas from Wan X, Wang W, Liu J, Tu X (2014). Estimating the sample mean and standard deviation from the sample size, median, range and/or interquartile range. BMC Medical Research Methodology 14:135.