Stem and Leaf Plot Calculator

Your details

Enter numbers separated by commas, spaces, semicolons, or new lines. Decimals and negative numbers are supported.
Single mode shows one dataset. Back-to-back places two datasets on a shared stem axis for side-by-side comparison.
When on, each stem row is split into two: one for leaves 0-4 and one for leaves 5-9. This helps spread out dense clusters.
Stem and leaf plot
1 | 2 5 2 | 1 4 7 3 | 3 8 4 | 1 4 7 5 | 2 5 8 6 | 3 7 7 | 1 5 8 | 2 4 9

Each row: stem | leaves (sorted)

Count (n)20
Mean49.9
Median49.5
ModeNo mode
Minimum12
Maximum89
Range77
Q1 (25th percentile)30
Q3 (75th percentile)69
IQR39
Std deviation (s)23.6107
Variance (s²)557.4632
Minimum12
Q130
Median49.5
Mean49.9
Q369
Maximum89

Dataset summary: n = 20, mean = 49.90, median = 49.50.

  • Your dataset has 20 values ranging from 12 to 89 (range: 77.00).
  • The mean is 49.90 and the median is 49.50, so the distribution appears roughly symmetric.
  • The standard deviation is 23.61, indicating how spread the values are around the mean.
  • The interquartile range (IQR) is 39.00, covering the middle 50% of values.

Next stepUse the stem and leaf plot to spot gaps, clusters, and outliers that summary statistics alone miss.

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