Stem and leaf plot calculator turns a raw number list into an ordered stem-and-leaf display.
About this calculator
Stem and leaf plot calculator turns a raw number list into an ordered stem-and-leaf display. Each value splits into a stem (tens digit) and leaf (ones digit). For 23 you see 2 | 3. Duplicate values appear as repeated leaves on the same stem — two scores of 23 show as 2 | 3 3.
Unlike a histogram, no data is lost. You see every observation and the overall shape at once. Teachers use stem plots for small datasets — class test scores, plant heights, daily temperatures.
For 12, 23, 23, 27, 31, 35, 35, 40, 42, 48 the plot shows stems 1 through 4 with leaves sorted within each row. The calculator also reports mean, median, range, and standard deviation.
Use [[mean-median-mode]] for central tendency alone, [[quartile-iqr]] for box-plot statistics, and [[percentile]] for rank-based cutoffs.
Common uses
- Create a stem-and-leaf plot for a statistics homework assignment
- Visualize class test scores before building a full histogram
- Compare two small datasets side by side with stem plots
- Check for clusters and gaps in quality-control measurements
- Teach students how raw data maps to a visual distribution
Frequently asked questions
How do I make a stem-and-leaf plot for 12, 23, 23, 27, 31?
Split each value: 12 → 1|2, 23 → 2|3, 27 → 2|7, 31 → 3|1. Sort leaves within each stem: 1|2 and 2|3 3 7 and 3|1. The plot shows shape and every original value.
What does 2 | 3 3 7 mean?
Stem 2 with leaves 3, 3, and 7 represents the values 23, 23, and 27. Leaves are always sorted left to right within a stem row.
When should I use a stem plot instead of a histogram?
Stem plots work best for small datasets (roughly 20–50 points) where you want to see every value. Histograms scale better for large samples.
Does this calculator show descriptive statistics too?
Yes. Along with the plot you get count, mean, median, min, max, range, and sample standard deviation for the same dataset.