How can I find my iPhone?

Hello. If you don't have access to your iPhone, you can access Find My via a web browser by accessing the webpage here. After accessing the webpage, you will have access to the Find My features detailed here and can begin the process of locating your lost iPhone.

You can use the internet browser on any computer or device and log into www.icloud.com/find

Also see: If your iPhone, iPad, or iPod touch is lost or stolen - Apple Support