How to find your ring size.
Ring sizing matters more than people realise. A made-to-order ring can be resized once or twice, but only within a narrow range and not for every setting. Pavé bands, in particular, don't resize well. So it's worth getting it right the first time.
Here are two ways to do it at home, and one way that's better than either.
How should a ring fit?
Before you measure, it helps to know what you are aiming for. A ring should feel comfortable and sit snugly: tight enough that it will not slide off, loose enough that it does not pinch.
Bear in mind that the width of the band affects the fit. A wider ring may need to be slightly larger than a narrow one to feel comfortable on the same finger.
Measure a ring you already own
This is the most reliable home method. Take a ring that already fits the finger you want sized (one that's comfortable, not tight, not loose) and measure the inside diameter in millimetres with a ruler.
Match the diameter to a size:
- 14.0 mm = EU 44
- 14.3 mm = EU 45
- 14.6 mm = EU 46
- 15.0 mm = EU 47
- 15.3 mm = EU 48
- 15.6 mm = EU 49
- 15.9 mm = EU 50
- 16.2 mm = EU 51
- 16.6 mm = EU 52
- 16.9 mm = EU 53
- 17.2 mm = EU 54
- 17.5 mm = EU 55
- 17.8 mm = EU 56
- 18.1 mm = EU 57
- 18.5 mm = EU 58
- 18.8 mm = EU 59
- 19.1 mm = EU 60
- 19.4 mm = EU 61
- 19.7 mm = EU 62
- 20.1 mm = EU 63
If you fall between two sizes, go up. Knuckles are wider than the base of the finger, and a ring that won't pass the knuckle isn't a ring you'll wear.
String and ruler
Wrap a length of string or a thin paper strip around the base of the finger. Mark where the ends meet, lay it flat, and measure the length in millimetres. That's the inner circumference.
For a quick conversion, EU ring size is the inner circumference in millimetres. So 53 mm circumference is roughly EU 53.
This method is fine for a rough idea. It's also the least reliable, because string stretches and paper distorts. We'd use it to get into the right neighbourhood, then verify another way.
Schedule a fitting
For a piece you'll wear forever, an in-person measurement is worth the half hour. We use a graduated steel mandrel and a set of calibrated test rings. It takes five minutes and you leave with the exact size.
We do these at a private meeting in Stockholm.
Common mistakes when choosing a ring size
Fingers swell during the day, especially in summer. Measure in the late afternoon at room temperature. Don't measure first thing in the morning, and don't measure after exercise.
Dominant hands tend to be a quarter to a half size larger than the other side. If the ring is for the left hand, don't measure the right.
Wider bands fit tighter than thin ones at the same nominal size. If the ring is going to be a wide band (3 mm or more), size up by half.
And if you're buying as a surprise, the safest move is to steal a ring she already wears and bring it to us. We'll measure it without you having to guess.
Common questions
Yes. The most reliable way is to measure the inside diameter of a ring that already fits, or to wrap a strip of paper around the finger. Both are covered above. For a ring you'll keep for life, we still recommend a fitting.
Most women fall around EU 52 to 54 (US 6 to 7), though it varies with the hand and the finger.
Most men fall around EU 60 to 63 (US 9 to 11).
It can differ. Many people wear the same size on both hands, but it is not unusual for the same finger to vary by up to a full size. Whichever hand you use most tends to have slightly heavier fingers, so measure the hand the ring will actually be worn on.
Borrow a ring they already wear on the correct finger and bring it to us to measure, or quietly ask someone close to them. A ring worn daily is the safest reference.
Most can be resized once or twice within a narrow range. Pavé and full-eternity bands are the exception and resize poorly, so it's worth getting the size right from the start.
Size up. The knuckle is wider than the base of the finger, and a ring that won't pass the knuckle won't be worn.
Need a hand?
We'll measure you in person in Stockholm, or guide you through it on a video call. Either way, we'd rather get this right than guess.
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