US to JP Ring Size for Wide Band Fit
8.5 US ring size = 7.7 JP ring size ยท fit-based size mapping for selected fit profile
Direct Answer
8.5 US ring size equals 7.7 JP ring size
This result uses the selected selected fit profile mapping as the profile basis.
For 6.5 US ring size, the selected fit profile mapping returns 5.8 JP ring size under the same fit assumptions.
Converter Calculator
7.7 JP value
SwitchExplanation
US converts to JP by normalizing to ring diameter in millimeters, then remapping to the target system. Fit profile fixed: Wide Band Fit.
From US ring size to JP ring size, results depend on the selected selected fit profile fit mapping and stay consistent with that mapping across table rows and calculator input.
Keep the same fit profile in both directions to avoid mixing size mappings that use different apparel allowances.
Common Conversion Values
| US value | JP value |
|---|---|
| 6.5 | 5.8 |
| 7.5 | 6.8 |
| 8.5 | 7.7 |
| 9.5 | 8.7 |
| 10.5 | 9.6 |
Frequently Asked Questions
What is the opposite direction for US ring size to JP ring size?
Use the mirror JP ring size to US ring size route; it applies the inverse relationship for the opposite direction with the same assumptions.
What fit profile is used on this page?
Wide Band Fit.
How is US ring size to JP ring size calculated?
The converter applies the formula defined for US ring size to JP ring size, then renders rounded output for the direct answer and common-value rows.