Stem and Leaf Plot Generator
Generate a stem-and-leaf plot from your dataset.
Paste numbers and get an organized plot with median, quartiles, and summary statistics instantly.
Stem-and-Leaf Plot
A stem-and-leaf plot (stemplot) organizes numeric data to show its distribution while preserving every individual value. It is a quick exploratory tool that reveals shape, center, and spread without losing raw data.
How It Works
Each number is split into two parts:
- Stem: The leading digit(s) — typically the tens place (or hundreds for large data)
- Leaf: The trailing digit — typically the units place
For example, the number 47 has stem 4 and leaf 7.
Reading a Stem-and-Leaf Plot
Each row shows all values sharing the same stem. Leaves are sorted in ascending order within each row. Rotating the plot 90° reveals a histogram shape.
Example — Dataset: 23, 25, 31, 34, 34, 38, 42, 45
2 | 3 5
3 | 1 4 4 8
4 | 2 5
Key | Notation
Plots include a key such as “3 | 4 means 34” to clarify the scale.
Summary Statistics
This calculator also computes:
- Minimum, maximum, range
- Median (middle value)
- Q1 (25th percentile) and Q3 (75th percentile)
- Interquartile range (IQR = Q3 − Q1)
- Mean
Best Used When
- Dataset has 5–50 values
- Data fits in two digit stems (10s and units)
- You want to see shape and individual values simultaneously
Limitations
Large datasets become unwieldy. Decimal data may need rounding first. This calculator rounds all values to the nearest integer.