While there are lots of ways to find your correct ring size the best way is to use the correct ring gauge to start with.When you go to your local jeweler this is what you need to know.

This gauge is for thin bands:                                                        

This gauge is for thick bands:

You want the sizer to go over the knuckle with slight resistance and feel comfortable, most jewelers don’t have the full set of gauges so if you want to make sure call and ask if the have gauges that come in ¼ sizes for wide bands.This will ensure an accurate fit.