US
11.5
=
United Kingdom
W
(65.9mm)
Also: EU 65.5JP 24
Nearby Sizes
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Full Size Chart
| US | UK | EU | JP | Inner circumference |
|---|---|---|---|---|
| 3 | F | 44 | 4 | 44.2mm |
| 3.5 | G | 45.5 | 5 | 45.5mm |
| 4 | H | 47 | 7 | 46.8mm |
| 4.5 | I | 48 | 8 | 48mm |
| 5 | J | 49 | 9 | 49.3mm |
| 5.5 | K | 50.5 | 10 | 50.6mm |
| 6 | L | 51.5 | 12 | 51.9mm |
| 6.5 | M | 53 | 13 | 53.1mm |
| 7 | N | 54 | 14 | 54.4mm |
| 7.5 | O | 55.5 | 15 | 55.7mm |
| 8 | P | 57 | 16 | 57mm |
| 8.5 | Q | 58 | 17 | 58.3mm |
| 9 | R | 59 | 18 | 59.5mm |
| 9.5 | S | 60.5 | 19 | 60.8mm |
| 10 | T | 62 | 20 | 62.1mm |
| 10.5 | U | 63 | 22 | 63.4mm |
| 11 | V | 64 | 23 | 64.6mm |
| 11.5 | W | 65.5 | 24 | 65.9mm |
| 12 | X | 67 | 25 | 67.2mm |
| 13 | Z | 69.5 | 27 | 69.7mm |
Convert US 11.5 to Other Systems
In ring, a US 11.5 corresponds to UK W according to standard international size charts. Your measurement of approximately 65.9mm corresponds to this size. This is the most widely accepted conversion, though sizing can differ slightly depending on the brand or manufacturer. For the best results, compare this conversion with the specific product's size recommendations.
Frequently Asked Questions
What is US 11.5 in UK ring?
US size 11.5 in ring is equivalent to UK size W. This conversion is based on standard international sizing charts and is widely accepted across brands and retailers.
What is US 11.5 in other sizing systems?
US size 11.5 in ring converts to: UK W, EU 65.5, JP 24. Use our converter above to see all available systems.
Is US 11.5 the same as UK W?
Yes, US 11.5 is equivalent to UK W in standard ring sizing. However, fit can vary between brands, so trying on items or checking brand-specific size charts is always recommended.
How accurate are ring size conversions?
Our size conversions are based on international standards and verified against multiple authoritative sources. They represent the most widely accepted equivalents. However, individual brands may size slightly differently, so we recommend trying items on when possible or checking the brand's own size guide.
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Need help? Read our How to Measure Ring Size guide.