How to show week numbers in Calendar app on iPhone and Mac

In this tutorial, we will show you how to display week numbers in your calendar views across iPhone, iPad, and Mac so you can have an additional piece of useful information while working inside this app.

iPhone calendar with and without week numbers

Apple’s Calendar app for the iPhone, iPad, and Mac does a fine job of helping organize your schedule and making you more productive.

Like many other people, I like to browse my calendars with week numbers enabled, as this helps me better understand my events and tasks for the month. But it isn’t switched on by default. So, here’s how to do that.

Show week numbers in Apple Calendar

You can do it on iOS and macOS.

On iPhone and iPad

  1. Open the Settings app.
  2. Scroll down and tap Calendar.
  3. Flip the switch labeled Week Numbers to the ON position.
View week numbers in Calendar app for iPhone and iPad

This will enable the display of week numbers in the monthly calendar. Week numbers are not available in Day and Year views on Calendar for iOS.

On Mac

  1. Launch the Calendar app on your Mac.
  2. From the top menu bar, click Calendar > Settings or Preferences.
  3. Go to the Advanced tab.
  4. Tick the box next to “Show week numbers”.

Show week number in calendar on mac

This will enable week numbers in the Calendar’s Week, Month, and Year views.

View week numbers in Mac's Calendar app

Despite the fact that week numbers are unavailable in the Calendar web app at icloud.com/calendar, I like having that setting enabled on iOS and macOS.

At any rate, it’s far better to visually determine what week number of the year any date falls on than having to count the weeks manually like an animal.

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