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.

DOES 1/4 ring size make a difference?

These size differences vary by very small amounts. For example, the difference between a 5.75 and 6 ring size is so so so so slight. Just eating too much salted popcorn can cause your fingers to swell more than a 1/4 size the next day.

What size ring does a quarter make?

A quarter will yield a small ring, size ~7 or less. You can get a larger size but the ring will be very skinny. If you want a larger size ring, a Kennedy half dollar will work well.