Hello and thank you in advance.
I would like to have the shipping rates show on the product page or be able to display a link that allows the customer to see the shipping rates prior to going to the cart. As it is now they only see the shipping rates in the cart. I am using $0 shipping for the US to get around this issue but I do ship worldwide. How do I do this?
You can add an announcement bar to do this. In announcement bar you can add the details of shipping and can let customer knows about the shipping rates.
You can use the default announcement bar of the shopify if your theme allows or else you can also use the app https://apps.shopify.com/broadcast-bar
This app will help you to add the broadcast bar/ announcement bar on the header on any place.
Kindly let me know if you need any further help.