Measuring Bracelet Size: The Guide to Copper Bracelets

To measure your bracelet size, wrap a measuring tape or a strip of paper around your wrist just below the wrist bone—snugly, but without pressing. This circumference in centimeters is your base size. For a copper bracelet, add 1 to 1.5 cm so it sits comfortably and can move slightly with your wrist.

Key takeaways

• Measure your wrist circumference just below the bone using a measuring tape or a strip of paper and a ruler.
• For a comfortable fit, add 1 to 1.5 cm to your measured circumference; for a looser fit, add around 2 cm.
• Most pieces from Cupria Schmuck are adjustable or made in one size, so precise measurements are rarely necessary.
• In Germany, ring sizes are given as the inner circumference in millimeters: size 54 means a 54 mm inner circumference.
• Buying a gift? An adjustable style is the safe choice.

How do I measure my wrist correctly?

You don’t need any jewelry-store tools. A strip of paper, a pen, and a ruler are all you need—and two minutes of your time.

1. Cut a strip of paper about 1 cm wide and 25 cm long. A soft measuring tape from your sewing kit works just as well.
2. Wrap the strip around the wrist of your writing hand—usually your left wrist if you’re right-handed. Measure just below the wrist bone, where a watch sits.
3. Pull the strip snugly around your wrist so it touches your skin but can still slide without effort. If you measure too tightly, the result can easily be half a centimeter too small.
4. Mark the point where the two ends meet, remove the strip, and read the length against a ruler.
5. Measure again in the afternoon. Your wrist is slightly narrower in the morning than in the evening, so the average is a more accurate figure.

Write down the result in centimeters to one decimal place. You’ll need this number for any size chart you find online.

Which bracelet size suits which wrist circumference?

The following table is a guide for bracelets and cuffs. How much extra room feels right is a matter of preference: some people like their bracelet to move around, while others prefer a snug fit.

Wrist circumference	Recommended inner length	Fit
14.0–15.0 cm	15.0–16.0 cm	delicate, close fit
15.0–16.0 cm	16.0–17.5 cm	standard for slender wrists
16.0–17.5 cm	17.5–19.0 cm	medium fit, most common size
17.5–19.0 cm	19.0–20.5 cm	larger wrist
19.0 cm and up	20.5 cm and up	wider wrist, looser drape

For wide cuffs, it’s worth allowing more room: the wider the band, the more space it needs over the wrist bone. Narrow bracelets and anklets can fit more snugly.

What does “adjustable” mean for a copper bracelet?

A large proportion of our handmade copper bracelets are labeled “Adjustable.” This refers to an open cuff whose ends you can gently spread apart or press together until it fits. Pure copper is soft enough to do this and retains its new shape.

How to adjust a cuff

Hold the bracelet in both hands, gripping it across the width—not by the edges—and move the ends in small increments. Adjust just a few millimeters at a time, then try it on. Bending it sharply in one go can leave a dent in the metal. Three or four small adjustments are better than one big one.

And what about one size?

One-size styles are designed to fit the most common circumference, between around 16 and 19 cm. They fit most wrists well but cannot be reshaped. If your wrist measures under 15 cm or well over 19 cm, it’s better to choose an adjustable piece. Some bracelets also have built-in magnetic clasps—if you wear an implanted medical device, please check with your doctor first.

How do I find my ring size?

In Germany, ring size corresponds to the inner circumference in millimeters. So size 52 means a 52 mm inner circumference. There are two ways to find yours:

Measure your finger: Wrap a strip of paper around the base of your finger, mark it snugly, and measure the length in millimeters. That’s your size. Measure in the evening—and bear in mind that the ring must fit over your knuckle.

Measure a ring you already own: Measure the inner diameter with a ruler and multiply it by 3.14. A diameter of 16.5 mm gives a circumference of around 52 mm, or size 52.

Most of our copper rings are adjustable too: the band is open rather than closed, so it can be adjusted by one or two sizes. As with a cuff, make small adjustments.

How can I measure for a gift without asking?

This is one of the most common questions, especially before Christmas. Here are three ways to get it right without spoiling the surprise:

First, measure a bracelet or ring the person already wears. Place a ring from their jewelry box on paper, and you can find its inner diameter in ten seconds. Second, deliberately choose an adjustable style. That way, the size question becomes a small detail that can be sorted out in two minutes while unwrapping the gift. Third, stick with chains and necklaces—they’re the easiest to get right in terms of fit.

If it still doesn’t fit, copper can be adjusted, and you can always make use of your right of withdrawal. All Cupria Schmuck pieces are made from 99.9% pure copper, crafted by hand, and shipped to Germany and Austria.

Frequently asked questions

How much extra room do I need for a copper bracelet?

Add 1 to 1.5 cm to your measured wrist circumference. If you want the bracelet to sit more loosely and move slightly as you move, add around 2 cm. The extra room is usually more comfortable for wide cuffs.

Can I make a copper bracelet smaller myself?

Yes, if it’s an open cuff. Press the ends together with both hands in small increments, trying it on as you go. Closed one-size styles can’t be adjusted, so it’s important to choose the right one when you buy.

What should I do if my wrist circumference falls between two sizes?

Choose the larger size. A slightly looser bracelet can be adjusted or simply worn as is; one that’s too small can’t. With adjustable pieces, this isn’t usually an issue.

Does the size change when copper develops a patina?

No. The darker surface is an extremely thin layer and doesn’t affect the length or circumference. For advice on removing it or letting it develop, see our copper care guide and our article How to care for copper jewelry.