Q: How do i get iCalender on my PC?

Hello there, yoyoyoyoyoyo123.

It sounds like you are trying to setup iCloud on your PC computer. The following Knowledge Base article helps you get it setup:

Apple - iCloud - Learn how to set up iCloud on all your devices.

Once setup, this provides the information on how to access the information shared, including calendars:

Download iCloud for Windows - Apple Support

Make the most of your iCloud account

Learn more about using iCloud for Windows to access your files in iCloud Drive, connect with Mail in Outlook, and easily share photos, calendars, and bookmarks across your devices. And if you reach your iCloud storage limit, we’ll help you manage your storage so you can always have the latest versions of your most important things.

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Help with Outlook and iCloud
Help with iCloud Calendar
Help with iCloud Contacts

Thanks for reaching out to Apple Support Communities.

Cheers.