NAYA sizing guide
The fastest way to measure your ring size at home is to wrap a strip of string or paper around the base of your finger, mark where it overlaps, then measure that length against a ring size chart. It takes about two minutes with things you already own.
If you'd rather skip the math, measuring a ring you already own works just as well, and an adjustable ring sidesteps the guesswork completely if you're buying for someone else or you're still not sure.
Shop ringsMethod 1
The string and paper method
This is the easiest ring size method if you don't have a ring to measure from. All you need is a thin strip of paper or a piece of non-stretchy string, a pen, and a ruler.
- Wrap it around: wind the string or paper strip around the base of the finger you'll wear the ring on.
- Mark the overlap: mark the point where the string meets itself, or where the paper starts to overlap.
- Measure in mm: lay the strip flat and measure the marked length in millimeters. That's your finger's circumference.
- Match to a chart: compare your number to the size chart below to find your US ring size.
Method 2
Measure a ring you already own
If a ring already fits the finger you're sizing for, this method is more reliable than string because there's no risk of pulling too tight.
- Lay the ring flat on a ruler or a printed millimeter chart.
- Measure the inner diameter, straight across the inside from edge to edge.
- Match that diameter in millimeters to the chart below.
- If the ring is oval rather than round from wear, measure the widest inside point.
Reference
US ring size chart
Once you have a measurement in millimeters, use this chart to find the closest US size. If you land between two sizes, size up.
| US size | Diameter (mm) | Circumference (mm) |
|---|---|---|
| 4 | 14.8 | 46.5 |
| 5 | 15.7 | 49.3 |
| 6 | 16.5 | 51.9 |
| 7 | 17.3 | 54.4 |
| 8 | 18.1 | 57.0 |
| 9 | 18.9 | 59.5 |
| 10 | 19.8 | 62.1 |
Statement shape
Once you know your size, a bold shape like this is an easy way to start a ring rotation.
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Everyday minimalist
A simple carved band that works stacked or worn alone once fit is right.
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Soft detail
A small cubic zirconia accent adds shine without moving away from everyday wear.
Shop the lookMethod 3
When an adjustable ring is the easier call
Not every ring needs a precise size. Open, adjustable bands flex slightly to fit a small range of finger sizes, which makes them a practical pick when you're buying a gift, sizing a child's or teen's ring, or you're simply not ready to commit to one exact number.
They won't replace a fitted band for a ring you'll stack tightly against others every day, but for a single everyday piece, an adjustable style removes the guesswork the string and existing-ring methods are solving for.
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Getting it right
Tips for a more accurate measurement
Measure later in the day
Fingers are slightly smaller in the morning and swell a little by afternoon or evening. Measuring later gives a more realistic everyday fit.
Skip the extremes
Avoid measuring right after a workout, in the cold, or after a salty meal. All three temporarily change finger size.
Snug, not tight
The string or paper should sit close to the skin without pinching. Pulling it too tight will read a size smaller than you actually are.
Measure the right finger
Ring size varies from hand to hand and finger to finger, so always measure the exact finger you plan to wear the ring on.
Once you know your size
Put it to work.
Once you've got a size you trust, our guide to stacking rings without overdoing it is the natural next step. Browse everyday rings to find your first few pieces, and adjustable styles if you're still deciding.
FAQ
Ring sizing questions
What's the best way to measure ring size without a ring sizer?
Wrap a piece of string or a thin paper strip around the base of your finger, mark where it overlaps, then measure that length in millimeters and match it to a ring size chart. It's the most accessible method since it only needs household items.
Can I use a ring I already own to find my size?
Yes. Lay a ring that already fits well on a ruler and measure the inner diameter, straight across from edge to edge in millimeters, then compare it to a size chart. This method tends to be more accurate than string because there's no risk of pulling too tight.
Does the time of day affect ring size measurements?
Yes. Fingers are typically smaller in the morning and swell slightly by afternoon or evening. Measuring later in the day gives a size that accounts for how your finger feels during normal daily wear.