There are both manual and automated methods to transfer emails from Outlook to Gmail.
Manual Methods:
#1 Using the Microsoft Outlook
Open the Outlook app on your computer.
Add your Hotmail account to Outlook and let it sync all your emails.
After that, add your Gmail account in the same way.
Once both accounts are set up, drag and drop the emails you want to transfer from your Hotmail inbox to your Gmail inbox.
#2 Using the Google Inbuilt Service
Open Gmail in your web browser and log in.
Click on the Gear icon (settings) in the top-right corner and select See All Settings.
Go to the Accounts and Import tab, then choose Import Mail and Contacts.
Enter your Hotmail email address and click Continue.
Provide your Hotmail password and any other required details, then hit Continue.
Select the data you want to import, then click Start Import to begin the process.
Automated Method:
If you want to transfer email from Hotmail to Gmail easily then DRS Hotmail Email Backup Tool is available. It allows migrating multiple Hotmail emails to Gmail via only a few clicks. Additionally, users will be able to move their Hotmail emails using this utility to other different file formats and email clients. This tool provides an accurate migration of Hotmail emails without any alteration in data.
In conclusion, both manual and automated methods are available to transfer Outlook emails to Gmail, but using a professional tool simplifies the process and ensures a more efficient and accurate migration.