Mean, Median, Mode Finder

Paste numbers separated by commas, spaces, or newlines. Get mean, median, mode, outliers, a sorted list, and a histogram.

Paste values or use Sample Data to try it out
Mean
n = 0
Median
range: —
Mode
Outliers (IQR)
IQR: — | Q1: — | Q3: —
Sorted Values
Median and outliers are highlighted.
Calculations & Formulas
How this works

We parse your numbers and compute descriptive statistics. Outliers are detected using the IQR rule: values below Q1 − 1.5×IQR or above Q3 + 1.5×IQR are flagged. The histogram uses automatic binning (Sturges’ rule) unless you override it with the slider.

  • Paste freely — commas, spaces, new lines all work.
  • Modes: if multiple values share the top frequency, they’re all listed.
  • Tip: For clean histograms with small datasets, try 5–10 bins.

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Mean • Median • Mode: FAQ

When should I use the median instead of the mean?

Use the median for skewed data or when outliers exist; it’s robust to extreme values. Use the mean for roughly symmetric distributions without heavy tails.

What if there are multiple modes?

Data can be bimodal or multimodal. The calculator reports the set of most frequent values; examine histograms to understand multiple peaks.

How do outliers affect averages?

Outliers strongly pull the mean but have limited impact on the median and none on the mode. Consider trimming or winsorizing if appropriate.

Population vs sample?

For descriptive summaries, mean/median/mode share definitions; inferential formulas (e.g., variance) differ between population and sample.