What ring size is 16.5 mm?
A 16.5 mm inner diameter is a US 6 — UK L½, EU 52, Japan 12.
- US
- 6
- UK
- L½
- EU
- 52
- Japan
- 12
- Ø mm
- 16.5
- Circ mm
- 51.8
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Frequently asked questions
What ring size is 16.5 mm?
A 16.5 mm inner diameter is closest to US 6 (UK L½, EU 52, Japan 12).
Is 16.5 mm a diameter or circumference?
On this page 16.5 mm is the inner diameter (the width across the inside of the ring). The matching inner circumference is about 51.8 mm.