* Ring size conversion
JP 7 ring size conversion
JP 7 is an inside diameter of 15 mm (circumference 47.1 mm). In other systems that is US 4 = UK H = EU 47 = Japan 7.
Published July 11, 2026
JP 7 — full conversion
- Inside diameter
- 15 mm
- Inside circumference
- 47.1 mm
- Japan
- 7
- US / Canada
- 4
- UK / Australia
- H
- EU (ISO)
- 47
Nearby sizes
- Ø 14.7 mm — US 3.5 = UK G = EU 46 = Japan 6
- Ø 15.3 mm — US 4.5 = UK I = EU 48 = Japan 8
Buying tips for JP 7
- 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 JP 7 in other ring size systems?
- A. JP 7 converts to US 4 = UK H = EU 47 = Japan 7.
- Q. What is the diameter of JP 7?
- A. Inside diameter 15 mm; inside circumference 47.1 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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