Ring Sizing Help Page

Right up front, know that you have one free exchange to a different size of the same ring. So don't sweat it! (See details here)

The best way: match a ring you already own

If you already wear a ring on the finger you’re shopping for, that’s your gold standard.

Use that ring as your reference.
Take it to any local jeweler and ask them to check the size on a ring mandrel. It takes about 30 seconds and they’ll give you the size in US numbers (like 9, 9.5, 10, etc.).
Already know your size?
If you’ve been sized before or your existing ring is stamped with a size, you’re all set—order that same US size in your Quinn Henry ring.

If you don’t have a ring to reference, or you just want to double-check at home, use the paper method below.

You can follow along with the video above, or use the written steps here.

Cut a narrow strip of paper
Cut a strip about 3 mm (⅛") wide and 150 mm (6") long.
(Optional) Tape one end down
Lightly tape one end of the strip to a table or flat surface. You don’t have to, but it makes wrapping much easier.
Wrap the strip around your finger
- Use the finger you’re sizing.
- Wrap the strip over and around the widest part where the ring will sit, just past the knuckle.
- Pull it snug but not tight—it should feel like a ring that slides on with a little resistance, not like it’s squeezing you.
Make your mark
Where the end of the strip overlaps, draw a straight line across both layers of paper. This gives you a start and end mark.
Measure the distance
Unwrap the strip and lay it flat. Measure the distance between the two marks:
- Use millimeters for the most accurate result.
- If you only have inches, measure in inches and convert (or use the inch column in the chart).
Use the chart below
Find the measurement closest to your number in the chart below and match it to the US ring size in the first column. That’s the size to order.

A few things can change how a ring fits, so it’s worth keeping these in mind:

Measure at the right time of day
Fingers are usually a bit smaller in the morning and larger in the evening, or after activity. Measuring late afternoon or evening gives a more realistic “all-day” fit.
Temperature matters
Heat makes fingers swell; cold makes them shrink. Try to measure at a comfortable room temperature, not right after being outside in the cold or coming out of a hot shower.
Knuckles vs. base of finger
The ring has to slide over your knuckle but not spin around at the base. If your knuckle is much larger than the base, size so that:
- The ring slides over the knuckle with a little resistance, and
- It doesn’t spin freely once it’s on.
Right hand vs. left hand
Your dominant hand is often slightly larger. If you wear rings on both hands, measure each finger separately.
Between sizes? Go up, not down
If your measurement sits between two sizes, it’s generally better to choose the larger size, especially for thicker fingers or warm climates.
Wide bands fit tighter
Rings with a wider band (around 4 mm and up) feel tighter than thin bands in the same size.
- If you’re between sizes and the ring you want has a wide band, consider going ½ size up.
Remember: one free exchange
Even with careful measuring, sizing can be a bit personal. If the first one isn’t perfect, we’ll help you exchange it once for a different size of the same ring.