How to find your ring size at home
Two ways to measure, a conversion chart and tips to get it right the first time.
Wondering how to find your ring size without going to a jeweler? All you need is a piece of string or a strip of paper, a ruler and, if you have one, a ring that already fits you well. You'll have your measurement in five minutes.
We walk you through both methods, give you the chart to go from millimeters to size and tell you what to do if the ring is a gift.
Method 1: with a piece of string or a strip of paper
It's the easiest method if you don't have a ring handy. You measure the circumference of your finger, that is, how long its outline is.
Method 2: with a ring you already have
If you have a ring that fits well on the finger you want, this is the most reliable method. Here you measure the diameter, that is, the width of the circle on the inside.
No ruler handy? Trace the inside of the ring on a piece of paper and measure the circle afterward. That way it won't move while you measure.
Diameter to ring size conversion chart
These are San Saru's sizes. The EU size is the same as the circumference in millimeters, which is why it almost matches what the string measures.
| ES size | Diameter | Circumference | EU | US |
|---|---|---|---|---|
| 4 | 14,0 mm | 44,0 mm | 44 | 3 |
| 6 | 14,6 mm | 45,9 mm | 46 | 3 3/4 |
| 8 | 15,2 mm | 47,8 mm | 48 | 4 1/2 |
| 10 | 15,9 mm | 50,0 mm | 50 | 5 1/2 |
| 12 | 16,5 mm | 51,8 mm | 52 | 6 |
| 14 | 17,1 mm | 53,7 mm | 54 | 7 |
| 16 | 17,8 mm | 55,9 mm | 56 | 7 3/4 |
| 18 | 18,4 mm | 57,8 mm | 58 | 8 1/2 |
| 20 | 19,1 mm | 60,0 mm | 60 | 9 |
| 22 | 19,6 mm | 61,6 mm | 62 | 9 3/4 |
| 24 | 20,3 mm | 63,8 mm | 64 | 10 1/2 |
You can also find it in our size guide.
Tips for measuring right
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Measure in the afternoon. Your fingers swell a little over the course of the day. In the afternoon they're at their most usual size.
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Not too cold, not too hot. Fingers shrink in the cold and swell in the heat. Measure with your hands at a normal temperature, not right after working out.
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If you have wide knuckles, measure your knuckle too and go with an in-between measurement: the ring has to slide on without forcing it, but not spin around at the base.
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Wide ring, bigger size. A wide ring feels tighter than a thin one in the same size. If you're going for a wide one, size up.
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Measure two or three times. And on the exact finger: your size changes from one finger to another and from one hand to the other.
Adjustable rings: when they're the best choice
An adjustable ring has a small opening that lets you open or close it a little. They're the best choice when:
- You don't know the size, for example, if it's a gift.
- You're between two sizes or your fingers change with the heat.
- You want to wear the same ring on different fingers, or as a midi ring.
Some of ours: the Kanu ring, with three smooth bands; the Tanika ring, with a braided line in the middle; and the Brahma ring, with a double band.
Shop adjustable ringsImportant: open and close them little by little, and always at the opening. If you force them too often, the silver weakens.
How to get the ring size right for a gift
Ring size FAQ
Wrap a piece of string or a strip of paper around your finger, mark where it meets and measure that length with a ruler. If you have a ring that fits you well, you can also measure its inner diameter. With either measurement, look up your size in the chart.
Go for the bigger one, especially if the ring is wide or your knuckles are prominent. A slightly loose ring is easier to wear than one that won't get past your knuckle.
No. Each finger has its own size, and it even changes from one hand to the other. Always measure the exact finger you're going to wear the ring on.
You can exchange or return your piece within 30 days. Personalized pieces can't be returned.
Now you know your size: find your ring
With your measurement in hand, all that's left is to choose. Discover our rings, from the thinnest ones for everyday wear to the biggest boho styles.
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