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Mondays Made Guides · Rings
Measure ring size at home with a ring that already fits, or a strip of paper and a ruler, then order knowing it will fit.
The quick answer
Measure in mm, then match it on our ring size chart. Between sizes? Size up.
Pick what you measured, type the number, and your size appears instantly in US, UK, EU, HK and Asia sizes.
1What did you measure?
Your ring size
Appears here
Start typing and your size updates live. Not measured yet? See the two easy methods below.
Shop Rings in Your Size See it in the ring size chart
Tip: measure across the widest inside point of the ring, not the outer edge of the band.
No ring to hand? A strip of paper about 10 cm long and a ruler are all you need to measure your ring size.
Find your diameter or circumference, then read across the row for your ring size in every system.
Swipe the chart sideways to see every column.
| US | UK | EU | HK | Asia | Diameter (mm) | Circumference (mm) |
|---|---|---|---|---|---|---|
| 4 | H | 46 | 9 | 7 | 14.8 | 46.8 |
| 5 | J | 50 | 11 | 9 | 15.7 | 49.3 |
| 6 | L | 52 | 13 | 11 | 16.5 | 51.9 |
| 7 | N | 54 | 16 | 14 | 17.3 | 54.4 |
| 8 | P | 57 | 18 | 16 | 18.1 | 57.0 |
| 9 | R | 60 | 21 | 18 | 19.0 | 59.5 |
| 10 | T | 62 | 23 | 20 | 19.8 | 62.1 |
Between two sizes? Choose the larger one.
Size up if you're in between
For comfort, choose the larger size when your measurement falls between two sizes.
Measure in the evening
Your ring size can change through the day. Fingers are slightly larger in the evening, so that's the best time to measure.
Measure at room temperature
Cold weather makes fingers shrink, so avoid measuring right after you've been out in the cold.
Skip it after salty meals or a drink
Alcohol and heavy, high-salt meals can cause temporary swelling, which throws the measurement off.
Lab-grown moissanite with more fire than a diamond, set in sterling silver and thick 18k vermeil, and made to be worn every day.
Ordered the wrong size? You have 30 days to return or exchange.
Use one of two methods: measure the inside diameter of a ring that already fits, or wrap a strip of paper around the base of your finger, mark the overlap and measure the length. Match either number in millimetres on the ring size chart above, or type it into the size finder.
Yes. String works the same way: wrap it around the base of your finger, mark where it meets, then measure the length in millimetres. Keep it snug but not tight, since string can stretch a little; a paper strip gives a slightly more reliable reading.
Choose the larger size. A slightly roomier ring is more comfortable, especially later in the day when fingers are naturally a little bigger.
Yes, slightly. Fingers tend to be larger in the evening and in warm weather, and smaller in the cold. Measuring in the evening at room temperature gives the most reliable result.
Not usually. Each finger, and even the same finger on each hand, can differ by a size or more. Measure the exact finger you plan to wear the ring on.
Find your US size in the ring size chart and read across the row. For example, a US 6 is a UK L, an EU 52, an HK 13 and an Asia 11.
Borrow a ring they already wear on the same finger and measure its inside diameter. If that isn't possible, size up: every order comes with 30 days to exchange.
You have 30 days to return or exchange your order. Get in touch and we'll help you find the right size.
Send us a message with your measurement and the ring you have in mind. We'll help you pick the right fit.
Talk To UsSterling silver bases, thick 18k vermeil and designs made to be worn every day.
