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How to calculate end date from start date and duration in Excel?

If you have a list of start dates and durations, now, you want to calculate the end date based on the start date and duration. How could you solve this job in Excel?

Calculate end date from start date and duration with formulas

Calculate end date from start date and duration with an amazing feature

Calculate end date from start date and duration with formulas

Calculate end date from start date and years, months, weeks duration

The following formulas can help you to calculate the end date from the given start date and duration, please do as this:

Calculate end date from start date and duration(weeks):

1. To calculate the end date from start date and number of weeks, please enter the following formula into a blank cell:

=IF(A2,A2+(B2*7),"")

Note: In this formula: A2 is the start date and B2 is the duration.

2. And then, drag the fill handle down to the cells you want to apply this formula, and a list of numbers are displayed as following screenshot shown:

3. Then you should format the numbers as date format, click Home tab, choose Short Date from the General drop down list, and the numbers have been formatted as date format, see screenshot:

Calculate end date from start date and duration(months):

If you want to calculate the end date from start date and number of months, the following formula may do you a favor:

1. Enter this formula into a blank cell where you want to get the result:

=DATE(YEAR(A2),MONTH(A2)+B2,DAY(A2))

Note: In this formula: A2 is the start date and B2 is the duration.

2. And then, drag the fill handle down to the cells you want to fill this formula, and the end date has been calculated at once, see screenshot:

Calculate end date from start date and duration(years):

To calculate end date based on given start date and number of years, please apply the below formula:

=DATE(YEAR(A2)+B2,MONTH(A2),DAY(A2))

Note: In this formula: A2 is the start date and B2 is the duration.

Then, drag the fill handle down the cells that you want to apply this formula, and all end dates have been calculated. See screenshot:

Calculate end date from start date and duration(years, months and days):

To get end date based on given start date and number of years,months and days, please apply the below formula:

=DATE(YEAR(A2)+B2,MONTH(A2)+C2,DAY(A2)+D2)

Note: In this formula: A2 is the start date and B2 is the duration of year, C2 is the duration of month, and D2 is the duration of day that you want to add.

Then drag the fill handle down to fill the formula to other cells you need, and all of the end dates have been calculated, see screenshot:

Calculate end time from start time and hours, minutes, seconds duration

Somtimes, you may want to return the end time from the start time and duration of hours, minutes and seconds, the TIME fucntion in Excel can do you a favor.

Please enter or copy the below formula into a blank cell:

=A2+TIME(B2,C2,D2)

Note: In this formula: A2 is the start time and B2 is the duration of hour, C2 is the duration of minute, and D2 is the duration of second that you want to add.

Calculate end date from start date and duration with an amazing feature

Perhaps, you are bored with the above formulas, here, I will talk about a useful tool-Kutools for Excel, with its Date & Time helper feature, you can quickly deal with this job as easily as possible.

Note:To apply this Date & Time helper, firstly, you should download the Kutools for Excel, and then apply the feature quickly and easily.

After installing Kutools for Excel, please do as this:

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

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

  • Check the Add option from the Type section;
  • Click button to select a cell that contains the start date that you want to use from the Enter a date or select a date formatting cell text box;
  • Then type or select the cell of the number durations you want to add in the Enter number or select cells which contain values you want to add section.

3. After finishing the settigs, click OK button, and you will get the first calculated result, then, you just need to drag the fill handle down to the cells that you want to apply this formula, and you will get the following result:

Click to Download Kutools for Excel and free trial Now!

More relative date and time articles:

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    Ravi · 1 months ago
    Hi,
    How to find the date of birth by retirement date and retirement age?
    For Example: Retirement date is 01-Mar-2014 and Retirement age is 58 years.
    Now how to find the date of birth.
    Thanks in advance.
    • To post as a guest, your comment is unpublished.
      skyyang · 20 days ago
      Hello, Ravi,
      For calculating the date of birth by retirement date and retirement age, please apply the below formula:
      =DATE(YEAR(A1)-58,MONTH(A1),DAY(A1))
      Note: A1 is the retirement date, and 58 is your retirement age.
      Please try it, thank you!