I have contacts and calendar on my PC. I would like them to be sync them on my iPhone. How can I do this?

You could set up iCloud for Windows and use iCloud to sync your computer and to your iPhone.

See Set up and use iCloud for Windows

also What is iCloud for Windows? - and in this document Set up iCloud Mail, Contacts and Calendar in Outlook on your Windows computer

DDMcConahay wrote:

I have contacts and calendar on my PC. I would like them to be sync them on my iPhone. How can I do this?

Your contacts & calendar sync to one or more email accounts. Just add those accounts to your phone, and when setting them up turn on the switches for Contacts & Calendar. To add email accounts to your phone go to Settings/Mail/Accounts. If the mail accounts are already on your phone tap on each and turn on the switches. If the accounts are not on your phone tap Add.