Before you put a ring on it, let’s make sure it fits! Keep reading for your all-in-one guide to ring sizing, including:
- Ring sizing basics: the numbers, the fit, average sizes
- How to figure out her ring size (in secret or if she’s in on it)
- Common rings myths busted
- Everything you need to know about resizing rings
What do ring size numbers mean?
Ring sizes in the US and Canada range from size 3 to size 15, with half sizes and quarter sizes available all the way up. These numbers are linked with either the diameter or circumference of the inside of the ring’s band. For example, a size 3 has a diameter of 14 mm, while a size 13 has a 22.2 mm diameter.
The difference between a nail-bitingly loose ring and an uncomfortably snug fit can be as small as 1 mm. Even a ½ size adjustments can be very noticeable in terms of comfort.