Histogram Calculator
Build a histogram from a list of numbers by dividing the data into a chosen number of equal-width bins and counting how many values fall in each.
About the Histogram Calculator
A histogram groups continuous data into equal-width intervals ("bins") and counts how many values fall into each one, revealing the overall shape of a distribution — where data clusters, where it's sparse, and whether it's symmetric or skewed.
Formula: Bin Width = (Maximum − Minimum) ÷ Number of Bins · each value is sorted into the bin whose range contains it, and the count of values per bin is tallied
Unlike a frequency distribution, which counts each exact repeated value, a histogram groups nearby values together into ranges — making it far more useful for continuous or widely spread data with few exact repeats. Enter your dataset and choose how many bins you'd like to see the bin boundaries and counts, a first step toward spotting the underlying shape of your distribution before running further statistical tests. If every value in the dataset is identical, the calculator places all of them into the first bin rather than dividing by a zero-width range.