Find Your Ring Size

Finding the right ring size should feel simple. Start with the method that gives you the clearest answer — and if you are still unsure, joolme can help.

Best place to start

The most accurate method is to measure a ring that already fits.

If you have access to an existing ring worn on the correct finger, use that first. Measuring the finger directly can still help — but it is usually less precise.

Two simple ways to find the size

Choose the method that fits your situation best. If the proposal is a surprise, measuring an existing ring is usually the safer place to begin.

1

Measure an existing ring

This is usually the most reliable method when you already have a ring that fits the correct finger.

  1. Select a ring that fits the intended finger comfortably.
  2. Measure the internal diameter of the ring in millimetres.
  3. Match that measurement to the chart below to find the closest size.

Tip: make sure the ring was worn on the same hand and finger you are buying for.

2

Measure the finger

If there is no ring to use, measuring the finger can still give a useful estimate.

  1. Wrap a narrow strip of paper or string around the base of the finger.
  2. Keep it snug, but not tight, and mark where the ends meet.
  3. Measure that length carefully and compare it to the closest size.

Tip: fingers can change slightly through the day, so measuring more than once is a smart idea.

Still not sure? Send us a photo after checkout

If neither method gives you enough confidence, you can still move forward. After placing the order, send us a clear photo and we will help estimate the size more accurately.

A more informed estimate, with support from our team

After checkout, send us your order number together with a clear photo by WhatsApp or email. Our team will review it and help estimate the size as accurately as possible.

This is not a promise of an exact fit — but it can reduce the guesswork meaningfully, especially for surprise proposals.

If the ring still needs adjustment afterwards, resizing remains available.

After checkout Place the order first, then send your order number together with the photo.
What to send A clear photo of an existing ring, the finger, or both — whichever gives the best reference.
What happens next We review it, help estimate the size, and guide you if we think a different size is safer.

International sizing chart

Use this chart to convert internal diameter to the nearest US and UK ring size. For joolme orders, the UK letter size is the one that matters most.

Internal Diameter (mm) US / Canada UK / Australia
14.1 3 F
14.5 3.5 G
14.9 4 H
15.3 4.5 I
15.7 5 J
16.1 5.5 K
16.5 6 L
16.9 6.5 M
17.3 7 N
17.7 7.5 O
18.1 8 P
18.5 8.5 Q
19.0 9 R
19.4 9.5 S
19.8 10 T
20.2 10.5 U
20.6 11 V
21.0 11.5 W
21.4 12 X
21.8 12.5 Y
22.2 13 Z
22.6 13.5 Z+1
23.0 14 Z+2
23.4 14.5 Z+3
23.8 15 Z+4

If you are between two sizes, do not guess quickly. A slightly more cautious choice now usually leads to a better final fit. Half sizes and larger sizes are included here to make the guide more useful before you order.

If you are between sizes

If you are between two sizes, it is usually safer to lean slightly larger rather than smaller — especially for a proposal ring that needs to slide on comfortably in the moment.

If the choice still feels uncertain, use the photo-support option above or contact our team before making the final decision.

A simple rule

Too tight creates a bigger problem than slightly loose. A small adjustment later is usually easier than a ring that will not go on at all.

Common questions

What is the best way to measure ring size at home?
The most reliable method is to measure a ring that already fits the intended finger. If that is not possible, measuring the finger directly can still give a useful estimate.
What if the ring is for a surprise proposal?
Start with an existing ring if you can access one. If not, choose the closest estimate you can and remember that resizing remains available afterwards.
What if I order the wrong size?
If the size is not perfect, joolme can help with resizing after purchase. The sizing decision matters, but it does not need to stop you from moving forward.
Can joolme help estimate the size from a photo?
Yes. After checkout, you can send us your order number together with a clear photo by WhatsApp or email, and we will help estimate the size as accurately as possible.
Should I choose the smaller size or the larger size if I am unsure?
In most cases, slightly larger is the safer direction. A ring that is a little loose is usually easier to solve than one that will not go over the finger comfortably.
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