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How to calculate a future date based on a given date in Excel?

Author Xiaoyang Last modified

If you need to add a number of days to a given date to calculate the future date, how could you deal with it in Excel?

Calculate a future date based on a given date with formula

Calculate a future date exclude weekends based on a given date with formula

Calculate a future date exclude weekends and holidays based on a given date with formula

Calculate a future date based on a given date with a powerful feature


Calculate a future date based on a given date with formula

To get a future date which is 100 days later based on current date, please apply the following simple formula:

Enter the formula below in a blank cell to calculate the future date, then drag the fill handle down to extend the result to other cells, as shown in the screenshot below:

=A2+100

A screenshot showing a calculated future date by adding 100 days in Excel


Calculate a future date exclude weekends based on a given date with formula

If you want to calculate a date that is 100 working days after given dates, excluding weekends, please use this formula:

1. Type the below formula into a blank cell, and then drag the fill handle to the cells where you want to apply the formula, and five-digit number will be displayed, see screenshot:

=WORKDAY(A2,100)

A screenshot showing a five-digit date result before converting to a readable date format

2. Then you should convert the five-digit number to date by clicking Short Date from the General drop-down list in the Home tab, see screenshot:

A screenshot showing the date format conversion using the Short Date option


Calculate a future date exclude weekends and holidays based on a given date with formula

1. Enter the below formula into a blank cell, and drag the fill hanlde to apply the formula to other cells, then some numbers are displayed, see screenshot:

=WORKDAY(A2,100,$E$2:$E$5)

Note: In the above formula, A2 is the current date that you want to calculate future date based on, 100 is the number of days you want to add to the date, E2:E5 is the holiday cells which needed to be excluded, please change them to your need.

A screenshot of the calculated future date excluding weekends and holidays before converting to a readable date format

2. Then select the formula cell, and click Short Date from the General drop-down list under the Home tab to convert the number to date format, see screenshot:

A screenshot showing conversion of numerical date to readable date format in Excel


Calculate a future date based on a given date with a powerful feature

If you need to calculate a future date by adding a number of days, weeks, months or years, the Kutools for Excel’s Date & Time helper function can do you a favor.

Kutools for Excel offers over 300 advanced features to streamline complex tasks, boosting creativity and efficiency. Itegarate with AI capabilities, Kutools automates tasks with precision, making data management effortless. Detailed information of Kutools for Excel...         Free trial...

After installing Kutools for Excel, please do as follows:

1. Select a cell where you want to locate the calculated result, and then click Kutools > Formula Helper > Date & Time helper, see screenshot:

A screenshot showing the Kutools Date & Time helper option on the Kutools tab on the ribbon

2. In the Date & Time Helper dialog box, do the following operations:

  • Select Add option from the Type section;
  • Then click to select a cell that you want to calculate a future date based on;
  • At last, enter the numbers of years, months, weeks or days that you want to add for the given date.

    A screenshot showing Kutools Date & Time Helper dialog box

3. Then click OK button, and you will get the future date. And then, drag the fill hanlde to fill the formula to other cells you need, see screenshot:

A screenshot of calculated future dates using Kutools' Date & Time helper in Excel

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More relative date and time articles:

  • Calculate Hours Between Times After Midnight In Excel
  • Supposing you have a time table to record your work time, the time in Column A is the start time of today and time in Column B is the end time of the following day. Normally, if you calculate the time difference between the two times by directly minus "=B2-A2", it will not display the correct result as left screenshot shown. How could you calculate the hours between two times after midnight in Excel correctly?
  • Calculate Working Hours Per Month In Excel
  • Normally, most of us may work 8 hours a day, 5 days a week. Here, I want to get the total working hours per month for calculating the salary. How to calculate the total working hours per month in Excel?
  • Calculate Hours Worked And Minus Lunch Time In Excel
  • As a company employee, we need punch in and punch out every work day, counting the total worked time and minus the lunch time of a day can help to calculate salary according to the time. For example, I have the following daily attendance record which contains log in, log out and lunch start, lunch end times in a worksheet, now, I want to calculate the total hours worked but minus lunch time each day. To finish this job, I can introduce some formulas for you.

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