View the week numbers in a calendar

1. In classic Outlook, select File > Options > Calendar.

2. Under Display options, select Show week numbers in the month view and in the Date Navigator.

3. To view the week numbers, open your calendar, and on the ribbon select Month. On the left side of the calendar, you'll the week numbers.

1. In the calendar in new Outlook​​​​​​​, on the View tab, select Calendar settings.

2. Select Calendar > View.

3. Under Calendar appearance, select Show week numbers, then select Save.

To view the week numbers, open your calendar, and on the ribbon select Month. On the left margin of the calendar, you'll see numerals representing the week numbers.