Microsoft Excel can perform thousands of different types of data manipulations and calculations. This article will teach you how to use Excel formulas to add a specific number of days to a date.

We show you how to use Excel to count days between two dates using the DAYS, DATEDIF, NETWORKDAYS, and TODAY functions, and Subtraction.

1] Add days directly If the expiry period is defined in days, you can calculate the expiry date by simply adding the number of days to the starting date using the + operator.

Excel's Date & Time functions help you calculate a day's serial number, move to a 360-day accounting calendar, and more. We cover Date, Days, Days360, Time, and Weekday ...

To ensure that a date column is used correctly, you can effectively insert a calendar in Excel, using an Excel date picker.

How to add a monthly balance in Excel As you’ve seen, a daily balance requires only a simple IF () function to match dates before returning the balance for each day.