Median & Interquartile Range (IQR) ---> Mean & Standard Deviation (SD)

By inputting the median, quartile 1 (Q1), quartile 3 (Q3), and the sample size of the group, you can obtain the mean and standard deviation (SD) using the Wan et al. method.

OR

Calculate & Input

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If you want to convert or calculate data for more than one study at the same time, enter data for study 1, study 2, study 3, ...etc, RESPECTIVELY across all cells using the same order.

Conversion Results

Study ID Median Q1 Q3 Sample Size Mean SD

Description of the formula

Variables Definitions

  1. Median: The middle value of a dataset, separating the higher half from the lower half.
  2. Q1 (First Quartile): The value below which 25% of the data falls.
  3. Q3 (Third Quartile): The value below which 75% of the data falls.
  4. Sample Size: The number of observations in the dataset.
  5. Mean: The average value of the dataset.
  6. Standard Deviation (SD): A measure of the amount of variation or dispersion in a set of values.

For more details about these variables and used formulas, read the full article.