Don’t know your ring size? No problem, here are a few things you can do to find out:

The most accurate method (highly recommended) is having your fingers sized by your local jewelry shop.
There are also several websites available with different methods to help you figure it out. If you already own a ring that fits you, this website could work for you(make sure to calibrate screen on your desktop, not mobile): www.findmyringsize.com
Another way is using dental floss.
1. Grab a piece of dental floss and wrap it around the base of your finger.
2. Use a marker or pen to mark the string where the ends meet.
3. Use a millimeter ruler to measure the length of the string.
4. Choose the closest measurement to the chart below to find your ring size.

Measure your rings when your fingers are at room temperature. Temperature is important. A cold finger shrinks while a hot finger expands causing an inaccurate reading.
Keep in mind, different fingers on the same and the opposite hand may have different sizes. Therefore, measure the specific finger on which you are planning to wear the ring.
Allow enough room to accommodate your knuckle.
A wider band needs a bigger size. Depending on your finger shape, wide bands may fit more snug than single bands. It is recommended going ½-1 full size up for wider bands.