# How To Calculate Number Of Days Between Two Dates In Excel

## Introduction

Excel is a powerful tool that can be used to perform a wide range of calculations. One of the most useful calculations is the number of days between two dates. Whether you need to calculate the number of days between two important events, or you simply want to keep track of how long it has been since a certain date, Excel can help. In this article, we will show you how to calculate the number of days between two dates in Excel.

## Sample Calculation 1: Number of Days Between Two Dates

To calculate the number of days between two dates in Excel, you can use the DATEDIF function. For example, if you want to calculate the number of days between January 1, 2023 and December 31, 2023, you can use the following formula:

=DATEDIF(“1/1/2023″,”12/31/2023″,”d”)

This formula will return the number of days between the two dates, which is 364.

## Sample Calculation 2: Number of Days Since a Certain Date

To calculate the number of days since a certain date in Excel, you can use the TODAY function. For example, if you want to calculate the number of days since January 1, 2023, you can use the following formula:

=TODAY()-“1/1/2023”

This formula will return the number of days since January 1, 2023.

## Sample Calculation 3: Number of Days Until a Certain Date

To calculate the number of days until a certain date in Excel, you can use the TODAY and DATEDIF functions. For example, if you want to calculate the number of days until December 31, 2023, you can use the following formula:

=DATEDIF(TODAY(),”12/31/2023″,”d”)

This formula will return the number of days until December 31, 2023.

## Tips for Calculating Number of Days Between Two Dates in Excel

– Make sure that the dates you are using are in the correct format. Excel uses the MM/DD/YYYY format by default, so if you are using a different format, you may need to convert it first. – Double-check your formulas to make sure that you have entered them correctly. A small mistake can lead to a big difference in your calculations. – Use cell references instead of hard-coding dates in your formulas. This will make it easier to update your calculations if your dates change.

## Frequently Asked Questions (FAQ)

### 1. What is the DATEDIF function?

The DATEDIF function is a built-in Excel function that calculates the difference between two dates in a variety of units, including days, months, and years.

### 2. What is the TODAY function?

The TODAY function is a built-in Excel function that returns the current date.

### 3. Can I use the DATEDIF function to calculate the number of months between two dates?

Yes, you can use the DATEDIF function to calculate the number of months between two dates. Simply change the “d” in the formula to “m”.

### 4. Can I use the TODAY function to calculate the number of days between two dates?

No, the TODAY function can only be used to calculate the number of days since or until a certain date. To calculate the number of days between two dates, you must use the DATEDIF function.

### 5. Can I use the DATEDIF function to calculate the number of years between two dates?

Yes, you can use the DATEDIF function to calculate the number of years between two dates. Simply change the “d” in the formula to “y”.

### 6. Can I use the DATEDIF function to calculate the difference between two times?

No, the DATEDIF function can only be used to calculate the difference between two dates. To calculate the difference between two times, you must use a different function, such as the TIME function.

### 7. How can I format the result of my calculation as a number of days?

To format the result of your calculation as a number of days, select the cell containing the formula and go to the “Number” tab in the formatting options. Choose “Number” as the category, and then select “0” as the decimal places. This will format the result as a whole number of days.

## Conclusion

Calculating the number of days between two dates in Excel is a useful skill that can be applied in a variety of contexts. By using the DATEDIF and TODAY functions, you can easily calculate the number of days since or until a certain date, or the number of days between two important events. With a little practice, you can become proficient in using Excel to perform a wide range of calculations.

## Tags:

Excel, Dates, Calculations, DATEDIF Function, TODAY Function, Formula, Tips, FAQ