* Ring size conversion
EU 70 ring size conversion
EU 70 is an inside diameter of 22.2 mm (circumference 69.7 mm). In other systems that is US 13 = UK Z+1 = EU 70 = Japan 29.
Published July 11, 2026
EU 70 — full conversion
- Inside diameter
- 22.2 mm
- Inside circumference
- 69.7 mm
- Japan
- 29
- US / Canada
- 13
- UK / Australia
- Z+1
- EU (ISO)
- 70
Nearby sizes
- Ø 21.8 mm — US 12.5 = UK Z = EU 68 = Japan 27
- Ø 22.6 mm — US 13.5 = UK Z+2 = EU 71 = Japan 30
Buying tips for EU 70
- Wide bands feel tighter — consider going up ~½ US size for bands over 6 mm.
- Printable paper sizers are often ¼–½ size off; prefer a metal gauge at a jeweler.
- Selling the ring for gold? Check 18K ring melt value or the karat × weight calculator.
* Frequently asked
FAQ
- Q. What is EU 70 in other ring size systems?
- A. EU 70 converts to US 13 = UK Z+1 = EU 70 = Japan 29.
- Q. What is the diameter of EU 70?
- A. Inside diameter 22.2 mm; inside circumference 69.7 mm.
- Q. How should I measure my finger?
- A. Measure at the end of the day when fingers are warm. The ring must clear the knuckle; if knuckle and base differ, size for the knuckle and consider a comfort-fit band.
- Q. Can every ring be resized to this size?
- A. Most gold and platinum bands can move 1–2 sizes. Tension settings, eternity bands, and some titanium/tungsten rings cannot. See a jeweler before ordering a resize.
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