Jewelry looks and feels better when it actually fits.
If you're shopping online and aren't sure what size to choose, you can measure your finger or wrist at home with a flexible measuring tape, a piece of non-stretchy string or even a thin strip of paper.
This guide covers US ring sizes, bracelet measurements and a few easy ways to avoid common sizing mistakes.
How to Measure Your Ring Size at Home
There are two easy methods: measure a ring you already own or measure your finger directly.
Method 1: Measure a Ring That Already Fits
If you already own a ring that fits the finger you're shopping for, this is usually the easiest method.
- Choose a ring that fits the correct finger comfortably.
- Lay it flat on a ruler.
- Measure the inside diameter straight across the center of the ring.
- Measure in millimeters.
- Compare your measurement with the chart below.
Important: Measure the empty space inside the ring—not the outside edges of the metal.
Method 2: Measure Your Finger With Paper or String
Don't have a ring that already fits? Use a thin strip of paper or a piece of non-stretchy string.
- Wrap the paper or string around the base of the finger where the ring will sit.
- Keep it comfortably snug without squeezing.
- Mark the exact spot where the ends meet.
- Lay it flat against a ruler.
- Measure the length in millimeters.
- This number is your finger's approximate circumference.
- Find the closest measurement in the chart below.
US Ring Size Chart
| US Ring Size | Inside Diameter | Finger Circumference |
|---|---|---|
| 4 | 14.8 mm | 46.5 mm |
| 4.5 | 15.2 mm | 47.8 mm |
| 5 | 15.7 mm | 49.0 mm |
| 5.5 | 16.1 mm | 50.3 mm |
| 6 | 16.5 mm | 51.5 mm |
| 6.5 | 16.9 mm | 52.8 mm |
| 7 | 17.3 mm | 54.0 mm |
| 7.5 | 17.7 mm | 55.3 mm |
| 8 | 18.1 mm | 56.6 mm |
| 8.5 | 18.5 mm | 57.8 mm |
| 9 | 18.9 mm | 59.1 mm |
| 9.5 | 19.4 mm | 60.3 mm |
| 10 | 19.8 mm | 61.6 mm |
| 10.5 | 20.2 mm | 62.8 mm |
| 11 | 20.6 mm | 64.1 mm |
| 11.5 | 21.0 mm | 65.3 mm |
| 12 | 21.4 mm | 66.6 mm |
If your measurement falls directly between two sizes, the larger size is usually the more comfortable place to start.
Tips for Getting a More Accurate Ring Size
Finger size isn't completely fixed. Temperature, time of day and even which hand you're measuring can make a difference.
- Measure the correct finger. The same finger can be a different size on your left and right hand.
- Don't measure when your hands are very cold. Cold fingers can measure smaller.
- Measure later in the day. Fingers can become slightly larger as the day goes on.
- Measure more than once. Two or three measurements are better than one quick guess.
- Think about your knuckle. The ring needs to pass over your knuckle as well as fit the base of your finger.
- Wider rings may feel tighter. A wide band can sometimes require a slightly larger size than a very thin ring.
How Should a Ring Fit?
A properly fitting ring should feel secure without squeezing your finger.
It should:
- Slide over your knuckle with a little resistance
- Sit comfortably at the base of your finger
- Not leave a painful indentation
- Not spin constantly or feel like it's going to fall off
If you're constantly worried about losing it, it's probably too loose. If getting it over your knuckle feels like a battle, it's probably too tight.
How to Measure Your Wrist for a Bracelet
Bracelet sizing is a little easier because you don't have to convert your measurement into a numbered size.
You'll need:
- A flexible measuring tape, or
- A piece of non-stretchy string or paper and a ruler
Then:
- Wrap the tape around the wrist where you normally wear a bracelet.
- Keep it snug against your skin without pulling tight.
- Write down your wrist circumference.
- Add a little extra length based on how you like your bracelets to fit.
How Much Should You Add to Your Wrist Measurement?
Your actual wrist measurement is only the starting point. A traditional chain bracelet needs a little extra room so you can move comfortably.
| Preferred Fit | Add to Wrist Measurement |
|---|---|
| Snug | About 1/4 to 1/2 inch |
| Comfortable | About 1/2 to 3/4 inch |
| Loose | About 3/4 to 1 inch |
For example, if your wrist measures 6.25 inches and you like a normal comfortable fit, a bracelet around 6.75 to 7 inches may feel right.
These are starting points, not strict rules. Bracelet thickness, charms and your personal preference can all change the ideal fit.
Bracelet Size Examples
| Wrist Measurement | Approx. Comfortable Bracelet Length |
|---|---|
| 5.5 inches | 6 to 6.25 inches |
| 6 inches | 6.5 to 6.75 inches |
| 6.5 inches | 7 to 7.25 inches |
| 7 inches | 7.5 to 7.75 inches |
| 7.5 inches | 8 to 8.25 inches |
What About Charm Bracelets?
A charm bracelet may need a little more room than a very thin chain bracelet.
As you add charms, they take up some of the space around the inside of the bracelet. A bracelet that feels roomy when empty can feel more fitted once several charms are attached.
If you're building a charm bracelet, don't size it so tightly that the charms are pressed constantly against your wrist.
See our guide to building a charm bracelet →
How Do You Size a Permanent Bracelet?
Permanent jewelry works differently from a traditional bracelet because the chain is custom-fit directly on your wrist instead of being ordered in a standard finished size.
A good permanent bracelet should have enough room for normal wrist movement without hanging so loosely that it constantly catches on things.
At Pretty Pickie, we fit permanent jewelry in person before welding the connecting link closed, so you can check the fit before anything is finalized.
See Permanent Jewelry in Fresno →
What About Bangles?
Rigid bangles are different from chain bracelets.
Because a closed bangle has to slide over your hand, your hand and knuckle size matters more than your wrist measurement.
To measure for a closed bangle:
- Bring your thumb toward your little finger as if you're sliding on a bangle.
- Measure around the widest part of your knuckles.
- Use that measurement with the specific bangle manufacturer's size chart.
Don't use a normal wrist measurement to order a rigid, non-opening bangle.
What If the Jewelry Has an Extender?
An extender gives you more flexibility.
For example, a bracelet listed as 6.5 inches + 2-inch extender can usually be worn anywhere within that adjustable range depending on where you fasten the clasp.
That makes adjustable pieces especially useful if you're between sizes, buying a gift or like your bracelet to fit differently depending on what you're stacking with it.
Common Jewelry Sizing Mistakes
- Guessing based on your usual clothing size. Jewelry sizing isn't connected to whether you wear a small or medium shirt.
- Measuring the wrong finger or wrist. Your left and right sides may not measure exactly the same.
- Pulling the tape too tight. Measure your actual body size first, then add room for fit.
- Using stretchy string. Stretch can make the measurement inaccurate.
- Forgetting the knuckle when measuring rings.
- Using wrist measurements for a closed bangle.
- Assuming every brand sizes jewelry exactly the same way. Always check the measurements listed on the actual product.
Measure Twice Before You Order
The easiest way to avoid a sizing headache is to slow down for one minute and measure twice.
For rings, use your finger circumference or the inside diameter of a ring that already fits.
For chain bracelets, measure your wrist and then add enough room for the fit you prefer.
And whenever a product page gives you specific measurements, use those measurements instead of relying only on a general small, medium or large label.
