Enter the total number of classes, the maximum value, and the minimum value into the calculator to determine the overall class width.

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## Class Width Formula

The following equation can be used to calculate the class width of a data set.

CW = (M – m)/n

- Where CW is the class width
- M is the maximum value
- m is the minimum value
- n is the total number of classes.

## Class Width Definition

Class width is defined as the difference between the upper and lower bounds of a class or category.

## Class Width Example

How to calculate class width?

**First, determine the maximum value.**Calculate the maximum value of the class.

**Next, determine the minimum value.**Calculate the minimum value of the class.

**Next, determine the total number of classes.**Calculate the total number of classes.

**Finally, calculate the class width.**Finally, use the equation above to calculate the class width.

## FAQ

**What is a class width?**

The class width is the difference between the upper and lower bounds of a class or category. These upper and lower bounds are often referred to as the maximums and minimums.

**How do you calculate class width?**

The class width is calculated by subtracting the minimum value from the maximum value and dividing it by the total number of classes.

**What are the maximum and minimum values?**

The max and min values are the largest and smallest values in the data set.