What ring size is 16 mm?
A 16 mm inner diameter is a US 5.5 — UK K½, EU 51, Japan 10. (between sizes — we suggest sizing up)
- US
- 5.5
- UK
- K½
- EU
- 51
- Japan
- 10
- Ø mm
- 16
- Circ mm
- 50.3
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Frequently asked questions
What ring size is 16 mm?
A 16 mm inner diameter is closest to US 5.5 (UK K½, EU 51, Japan 10). It falls between sizes, so we suggest sizing up.
Is 16 mm a diameter or circumference?
On this page 16 mm is the inner diameter (the width across the inside of the ring). The matching inner circumference is about 50.3 mm.