You can use the following formulas to calculate the number of months between two dates in Excel:

**Formula 1: Calculate Full Months Between Two Dates**

**=DATEDIF(A2, B2, "M")
**

**Formula 2: Calculate Fractional Months Between Two Dates**

**=DATEDIF(A2, B2, "M") + DATEDIF(A2, B2, "MD")/(365/12)
**

Both formulas assume that cell **A2** contains the start date and cell **B2** contains the end date.

The following examples show how to use each formula in practice.

**Example 1: Calculate Full Months Between Two Dates**

The following screenshot shows how to calculate the number of full months between a list of start and end dates in Excel:

Here’s how to interpret the output:

- There is
**1**full month between 1/1/2022 and 2/4/2022. - There are
**4**full months between 1/7/2022 and 5/29/2022. - There are
**0**full months between 1/20/2022 and 2/5/2022.

And so on.

**Example 2: Calculate Fractional Months Between Two Dates**

The following screenshot shows how to calculate the number of fractional months between a list of start and end dates in Excel:

Here’s how to interpret the output:

- There are approximately
**1.099**months between 1/1/2022 and 2/4/2022. - There are approximately
**4.723**months between 1/7/2022 and 5/29/2022. - There are approximately
**0.526**months between 1/20/2022 and 2/5/2022.

And so on.

**Note #1**: This formula uses **365/12** to approximate the number of days in a month. You can replace this value with **30** if you’d like to simplify the formula and make the assumption that a typical month has 30 days.

**Note #2**: You can find the complete documentation for the **DATEDIF** function in Excel here.

**Additional Resources**

The following tutorials explain how to perform other common operations in Excel:

How to Count by Month in Excel

How to Calculate Average by Month in Excel

How to Convert Date to Month and Year Format in Excel