You want to buy a ring — for yourself or as a gift — but you don't know the exact size. You don't necessarily have to go to a jewelry store. With a few tricks, you can measure yourself at home with good accuracy, or estimate the size for the person who will receive the jewelry without spoiling the surprise.
How ring sizing works
In Italy, the international system based on the internal circumference in millimeters is used. A ring size 16 means that the internal circumference is 16 mm — corresponding to a diameter of approximately 50.9 mm. Common sizes for women range from 14 to 18, and for men from 18 to 24.
Method 1 — The string or paper strip
- Cut a thin strip of paper about 5 mm wide
- Wrap it around the finger that will wear the ring, tight enough not to slip but not so tight as to constrict
- Mark the point where the strip overlaps
- Straighten the strip and measure its length in millimeters
- That number is your ring size
Tip: measure your finger at the end of the day, when it is slightly more swollen. Avoid measuring when you are cold — fingers shrink.
Method 2 — Measure a ring you already wear
If you have a ring that fits well on the same finger, measure the internal diameter with a ruler. Multiply by 3.14 to get the approximate circumference.
Method 3 — Estimate for a surprise gift
- Woman with a slender build: size 14–16
- Woman with an average build: size 16–18
- Man with an average build: size 20–22
- Man with a robust build: size 22–24
What to do if the size is between two sizes?
Always choose the larger size. A slightly loose ring is more comfortable than one that constricts, and in many cases, it can be resized by a jeweler.
Quick conversion table
- Size 14 — Ø 44.6 mm
- Size 15 — Ø 47.7 mm
- Size 16 — Ø 50.9 mm
- Size 17 — Ø 54.1 mm
- Size 18 — Ø 57.3 mm
- Size 20 — Ø 63.7 mm
- Size 22 — Ø 70.0 mm
CM Silver Jewels Rings
Every CM Silver Jewels ring lists its size on the product page. If you have doubts about the size or want advice before purchasing, write to us — we'll help you find the right size before your order ships.
→ Explore: Women's Rings | Men's Rings | 925 Silver Sacred Rings | Best Sellers
Not sure about the size? Message us on WhatsApp — we'll help you choose the right one before ordering.
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