{"id":1777,"date":"2026-10-19T06:12:57","date_gmt":"2026-10-19T06:12:57","guid":{"rendered":"https:\/\/oecler.com\/ring-size-guide\/"},"modified":"2026-10-21T05:36:05","modified_gmt":"2026-10-21T05:36:05","slug":"ring-size-guide","status":"publish","type":"page","link":"https:\/\/oecler.com\/zh\/ring-size-guide\/","title":{"rendered":"\u5c3a\u7801\u6307\u5357"},"content":{"rendered":"\t\t
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Ring Size Guide: US, UK & Australian Ring Sizes<\/h1>\n\t\t\t\t\t

To find your ring size, measure the inside diameter of a ring that already fits you, or wrap a strip of paper around the base of your finger and measure its length in millimeters, then match the number to the chart below. Oecler makes every ring to order in US, UK and Australian sizes, and the UK and Australia share the same letter scale. If you are not sure, send us your measurement and we confirm your size before production.<\/p>\n\t\t\n<\/div>\n

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Ring size conversion chart<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Find your US size, UK and Australian size, or your measurement in millimeters, and read across the row. These are the sizes you can choose on Oecler rings.<\/p>
Oecler ring size conversion chart: US, UK & Australian sizes with inside diameter and circumference<\/caption>
US size<\/th>UK & AU size<\/th>Inside diameter (mm)<\/th>Inside circumference (mm)<\/th><\/tr><\/thead>
3<\/td>F<\/td>14.1<\/td>44.2<\/td><\/tr>
3.5<\/td>G<\/td>14.5<\/td>45.5<\/td><\/tr>
4<\/td>H<\/td>14.9<\/td>46.8<\/td><\/tr>
4.5<\/td>I<\/td>15.3<\/td>48.0<\/td><\/tr>
5<\/td>J\u00bd<\/td>15.7<\/td>49.3<\/td><\/tr>
5.5<\/td>K\u00bd<\/td>16.1<\/td>50.6<\/td><\/tr>
6<\/td>L\u00bd<\/td>16.5<\/td>51.9<\/td><\/tr>
6.5<\/td>M\u00bd<\/td>16.9<\/td>53.1<\/td><\/tr>
7<\/td>N\u00bd<\/td>17.3<\/td>54.4<\/td><\/tr>
7.5<\/td>O\u00bd<\/td>17.7<\/td>55.7<\/td><\/tr>
8<\/td>P\u00bd<\/td>18.1<\/td>57.0<\/td><\/tr><\/tbody><\/table>

Inside circumference follows ISO 8653, the international standard that defines ring size by the inside circumference in millimeters. Inside diameter is the circumference divided by \u03c0 (pi). UK and Australian sizes use the same letter scale, and each half US size is about one letter on that scale. If your size is not in the chart, message us before you order.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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How to measure your ring size at home<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Method 1: Measure a ring that already fits<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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  1. Choose a ring that fits the finger you are sizing. Rings often fit differently on each hand.<\/li>
  2. Lay the ring flat on a ruler and measure straight across the inside, from inner edge to inner edge, in millimeters.<\/li>
  3. Find the nearest inside diameter in the chart above. That row is your size.<\/li><\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
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    Method 2: Use a strip of paper or string<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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    1. Cut a thin strip of paper, about 5 mm wide, or use a piece of string that does not stretch.<\/li>
    2. Wrap it around the base of your finger. It should feel snug but still slide over your knuckle.<\/li>
    3. Mark the point where the end overlaps with a pen.<\/li>
    4. Lay it flat and measure from the end to the mark in millimeters. This is your inside circumference.<\/li>
    5. Find the nearest inside circumference in the chart above. If you fall between two sizes, choose the larger one.<\/li><\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
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      Tips for an accurate ring size<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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