Ring Sizing

If you want to make really sure that you choose the right size for you, the best way is to get your ring measured by a jeweller. However if you can't be bothered there are ways to do it at home. 
Just be aware that the size of your fingers can fluctuate depending if they're warm/cold and also your left and right hand might be different (tendence to have slightly bigger fingers on your dominant hand). So pick the finger you want a ring for first before measuring :)

1. Take a thin strip of paper/ some non-elastic string/ some wire
2. Wrap the piece around your finger with a snug fit. Remember this is how your ring will fit so make sure it's not too snug/loose.
3. Mark where both ends meet
4. Measure the lenght & compare to the chart below 

Alternatively you could also measure the inside diameter of a ring you already have. But in this case the ring you pick would be sitting on the same finger as the of the ring you've measured.