Is your iPhone Calendar not syncing with Google Calendar? If yes, then you are on the right place. This issue can occur because of incorrect account settings, disabled calendar synchronization, network problems, or outdated app data. But you can resolve it with several troubleshooting methods. In this guide, we will explain several practical methods to resolve iPhone Calendar not syncing with Gmail Calendar error hassle-freely.
Apple Calendar VS Google Calendar: Overview
Apple Calendar and Google Calendar are calendar applications used to schedule events, manage appointments, and set reminders. However, they differ in platform compatibility, account integration, sharing features, and synchronization.
|
Features |
Apple Calendar |
Google Calendar |
|
Platform Compatibility |
Best suited for iPhone, iPad, and Mac |
Works across iOS, Android, and web browsers |
|
Synchronization |
Primarily integrates with iCloud and Apple devices |
Syncs through a Google account across devices |
|
Integration |
Integrates with Apple apps and services |
Integrates with Gmail and Google Workspace |
|
Calendar Sharing |
Supports sharing through iCloud and compatible accounts |
Offers calendar sharing with customizable permissions |
|
Event Transfer |
Supports exporting and sharing calendar events |
Supports importing and exporting events using ICS files |
In short, Apple Calendar is ideal for users in the Apple ecosystem, while Google Calendar is a strong choice for cross-platform access, collaboration, and Google service integration.
Why is iPhone Calendar Not Syncing with Google Calendar? Common Reasons
Before knowing the solutions, it is important for users to understand why this synchronization issue occurs between iPhone Calendar and Google Calendar. Some of the common reasons which may cause iCloud Calendar not syncing with Google Calendar error include:
- Calendar Sync is Disabled: Google Calendar may not be enabled in your iPhone’s account settings.
- Incorrect Google Account: The events may be saved to a different Google Calendar account rather than the one displayed on your iPhone.
- Internet Connectivity Issues: When you have a weak Wi-Fi or mobile data connection, syncing these calendars together can become difficult.
- Outdated Applications: Sometimes, the synchronization error can be caused by older versions of Google Calendar and iOS.
- Incorrect Default Calendar: The new events may be saved to iCloud instead of Google Calendar.
- ICS File Import Problems: When the ICS file is too large, invalid, or improperly formatted, the calendar may fail to import or display it correctly.
4 Solutions to Resolve iPhone Calendar Not Syncing With Gmail Calendar Error
After knowing the reasons, let’s move the troubleshooting methods to fix this iPhone Calendar not syncing with Gmail Calendar error. The top 4 solutions to resolve iPhone Calendar not syncing with Google Calendar error are:
- Enable Google Calendar Synchronization on iPhone
- Check Your Internet Connection and Refresh Calendar
- Remove and Re-add Google Calendar Account
- Fix Sync Issue due to Oversized File (Expert-Suggested Solution)
#1. Enable Google Calendar Synchronization on iPhone
If Google Calendar events are not appearing in your iPhone Calendar, the synchronization option may be disabled, which is why you are experiencing this iPhone calendar not syncing with Google Calendar. The steps to enable the synchronization option, follow the steps given below:
- First, open Settings on your iPhone.
- Then, navigate to the Apps section and choose the Calendar tab.
- From this option, choose the Calendar Accounts button.
- Next, select your Google account from the available accounts.
- After that, enable the Calendars option.
- Now, open the Apple Calendar app on your iPhone.
- And, tap on Calendars at the bottom of the screen.
- After that, select your Google Calendar and tap on Done.
- Finally, check whether your Google Calendar events appear correctly.
#2. Check Your Internet Connection and Refresh Calendar
When you are dealing with iPhone Calendar not syncing with Google Calendar error, the first steps is to check the internet connection of your device because sometimes a weak internet connection can cause delays in synchronization causing this error. The steps are as follows:
- Firstly, ensure that your iPhone is connected to a stable Wi-Fi or mobile data network.
- Then, open Google Calendar in your browser and check whether your events are available.
- Next, open the Apple Calendar app on your iPhone.
- Next, tap on the calendar at the bottom of the screen.
- Then, pull down on the calendar list to refresh it; it is supported by your iOS version.
- After that, confirm that your Google Calendar is selected.
- Next, wait briefly for the events to synchronize.
- Lastly, check whether the latest calendar events appear on your iPhone or not.
#3. Remove or Re-add Your Google Account on iPhone
If your iPhone calendar not syncing with Google Calendar even after trying the other solutions, then removing and re-adding the account may resolve the account authentication or synchronization issue. To do so, go through the steps below:
- At first, open Settings on your iPhone.
- Then, navigate to the Apps section and choose the Calendar tab.
- From this tab, select the Calendar Accounts option.
- Now, select your Google Account and tap Delete Account, and confirm the selection.
- Next, return to the Calendar Accounts and tap the Add Account option.
- From this, select Google and sign in using your Google account credentials.
- Now, enable the Calendars option to allow calendar synchronization.
- After that, open the Apple Calendar app and tap on Calendar.
- At last, verify that your Google Calendar events are visible and syncing correctly.
Disadvantages of the Manual Approaches
- Manual troubleshooting takes time when checking account settings and synchronization options.
- Users may require technical knowledge to identify and resolve calendar synchronization errors.
- These methods do not provide a direct way to split large ICS files into smaller parts.
- Repeatedly importing calendar files may create duplicate events.
- Manual methods may not resolve issues caused by oversized or incorrectly formatted ICS files.
#4. Resolve iPhone Calendar Not Syncing with Google Calendar Quickly
When you have tried all the manual solutions, and still facing this syncing error due to large calendar, then trying a standalone utility like ICS Splitter tool by SysTools is an ideal option. This software will help you break large iPhone Calendar ICS into small parts for easy syncing with Google Calendar. Also, it provides multiple splitting options during the process. Lastly, the software is simple and easy to use for beginner and professional users.
Why Choose this Enterprise-grade Solution?
- The software helps to divide multiple calendar files in bulk without data loss.
- It helps to retain calendar event information during the splitting process.
- This tool makes the ICS file management easier before importing them into a compatible format.
- This reliable solution helps to resolves ICS file too large to import error quickly.
- It is a desktop-based utility that works on both Windows and Mac operating systems.
Working Steps of the Tool
- Download the professional software and choose the “Split ICS” option.

- Then, click on the Add file or Add folder option to upload the ICS file.

- To fix iPhone calendar not syncing with Google Calendar, choose the splitting options.

- After that, a window prompt will display that the splitting process is completed successfully. Hit the OK button.

- At last, tap on the View Report option to check the status of the completed process.

Time to End!
The following article helps users fix the iPhone Calendar not syncing with Google Calendar issue easily. After that, we have mentioned the common reasons and the solutions including manual and automated solutions. Since manual methods may not work when the problem is caused by large or problematic ICS files, users can opt for the above-mentioned professional utility. The software helps to resolve errors such as Google Calendar imported 0 out of 0 events caused by oversized ICS files by splitting them into multiple parts.