How to Convert PST to ICS File in Simple Methods

Written By Edwin Stark
Updated on June 13th, 2025

Summary: Having Outlook calendars is great to schedule your important events, appointments, meetings, etc. But the catch is that you cannot access it with non-Microsoft platforms. So, what if there were a way to universally access calendar data and plan everything on the whim? It is possible if you convert PST to ICS file, like I did with this technical guide. It explains easy-free solutions and a PST Migration Tool for instant and secure conversion of bulk calendar data..

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Why Save PST Calendar to ICS, What’s the Difference?

Well, we all are aware that PST is Outlook’s core format, and all its data is stored within it. However, the application restriction is its biggest challenge. Thus, ICS came in as a more flexible, scalable, and portable format for storing calendar data.

ICS (Internet Calendar and Scheduling) format, unlike PST, is supported by several clients, such as:

Google and Outlook Calendar
Apple/Mac Mail Calendar (iCal)
Thunderbird Calendar via Lightning Add-on
Other web app calendars as Zoho, Notion, etc.

Furthermore, the significant reasons why you must proceed to convert PST file to ICS are:

Share calendars without worrying about exposing the entire PST file data.
Migrate calendars cross-platforms other than Microsoft Outlook.
Extract meeting invites from calendars for individual review or documentation.
Sync your personal and business schedules with lightweight ICS files.
Swiftly integrate ICS files with CRM and other project management tools.
Team members can easily subscribe to shared ICS calendar links.
Web developers can embed ICS calendars in the static HTML web pages.

Convert PST to ICS File: Know How?

There are only two top ways for PST to ICS conversion, including one manual method and one professional tool. These are briefly described below, alongwith the loopholes and benefits of their own. Also, following the given step-by-step process will give you optimum results.

Manual Way to Convert Outlook PST to ICS

First, start by running the MS Outlook application on your Windows.
Then, press the Calendar icon, and it will open up on the screen.
Now, checkbox the calendars you wish to change from the list.
Further, go to File and from the left pane, click Save Calendar.
In the dialog opened, select a destination and format set to .ics.
Afterward, enter a name from new calendar file and press More Options.
Apply the filters and other options as per the need, and finally, tap Save.

That’s how you export PST to ICS file cost-free. But there are several drawbacks to this easy and quick manual solution, such as:

Formatting and data missing or loss issues
Repetitive conversion for bulk Outlook PST calendars
Difficult to convert an orphan PST calendar
Need for Outlook and still lengthy and time-consuming

Note: You can directly drag and drop the calendars on the desktop to save as ICS.

Dedicated Software to Convert PST to ICS File

Since the manual process is not ideal for every situation, we have a more advanced solution. It is the EasyTech PST Migration Tool, i.e., an incredible utility to save PST calendar to ICS or CSV format with ease in one go. It has no size limitations and allows batch conversions with complete accuracy and data security.

Additionally, the software enables all novice and expert users to convert PST to EML and many more formats, including all emails, contacts, and other data. Moreover, anyone can use the software on Windows/Mac OS and convert calendars while maintaining their integrity.

Guide to Convert Outlook PST to ICS

Launch the PST to ICS File Converter and proceed to the utility with Next.
Then, choose the PST files and folders for conversion and press Next.
Preview the calendars in the pane and select from the tree structure.
Further, click on Next and choose ICS from the output file formats.
Apply the additional filters on .ics as you desire and set a destination.
At last, click on Convert to export PST to ICS file at once.

Pro Tip: Something You Must Avoid

Directly changing .pst to .ics format: it may result in corruption.
Avoid using the free PST to ICS Converters to secure the data.
Verify the time zones as PST is saved in the local system, while ICS is in UTC or standard offset.

Conclusion

I hope that you are clear with the idea to convert PST to ICS file. It is beneficial to consolidate events, switch platforms, and share globally. The manual way of conversion suits for a few calendar entries or occasional reasons. But for bulk conversions and metadata preservation, always use the expert software. Now, start optimizing calendars in a portable manner.

Q. How to convert PST file to ICS format?

Ans- Try the manual export, but for batch conversions and preserving the data reliably, use the professional PST File Converter Tool. The steps for the tool usage are mentioned above.

Q. Which tool is best for PST to ICS conversion?

Ans-PST Migrator is the top-rated tool for accurate and large-scale calendar extraction without worries.

About The Author:

Edwin Stark

Edwin Stark is a Technical Content Writer who specializes in writing about databases, e-mail recovery, and e-mail migration solutions. He loves researching and developing content that helps database administrators, organizations and novices to fix multiple problems.