How to Find Your Ring Size at Home
A ring should feel like it was always meant to be there: secure, comfortable and easy to forget you are wearing. Here is how to find your size in a few minutes, with things you already have at home.
BY THE DIMIRA JOURNAL · · 4 MIN READ
The right fit makes all the difference. Too tight, and a ring is pushed to the back of the jewellery box. Too loose, and it slips and spins. Fortunately, finding your size takes only a few minutes.
Method one: measure a ring you already own
This is the most accurate way at home.
- Choose a ring that fits the finger you plan to wear your new ring on.
- Place it on a flat surface and measure the inside diameter, from one inner edge to the other, in millimetres.
- Find that number in the chart below.
Method two: string or paper
- Cut a thin strip of paper, or use a piece of non-stretchy string.
- Wrap it around the base of your finger, snug but not tight.
- Mark where the end meets the strip, then lay it flat and measure the length in millimetres. This is your circumference.
- Make sure the ring would still slide over your knuckle, then find the number in the chart.
US ring size chart
| US size | Inside diameter (mm) | Circumference (mm) |
|---|---|---|
| 4 | 14.9 | 46.8 |
| 4.5 | 15.3 | 48.0 |
| 5 | 15.7 | 49.3 |
| 5.5 | 16.1 | 50.6 |
| 6 | 16.5 | 51.9 |
| 6.5 | 16.9 | 53.1 |
| 7 | 17.3 | 54.4 |
| 7.5 | 17.7 | 55.7 |
| 8 | 18.1 | 57.0 |
| 8.5 | 18.5 | 58.3 |
| 9 | 19.0 | 59.5 |
For other sizes and international conversions, see our full Size Guide.
Tips for a perfect fit
- Measure at the end of the day. Fingers are slightly larger in the evening and when you are warm.
- Measure more than once. Take two or three readings and use the average.
- Between two sizes? Choose the larger one, especially for wide or statement rings.
- Mind the knuckle. If your knuckle is wider than the base of your finger, choose a size that slips over it comfortably.
- Dominant hand. The fingers of your writing hand are often a little larger.
How our rings fit
Most DIMIRA rings have a gently adjustable open band that fits US sizes 4 to 9. Choose your size when you order, and we will pre-set the band to it before your ring ships. At home you can fine-tune it slightly: open or close the band in small steps, without forcing or bending it repeatedly.
Need a size outside this range, or a fixed band? We can make one to order, usually in 7 to 14 business days. Simply choose "Other size or fixed band" when you order, or contact us.
Buying a ring as a gift?
Borrow a ring she wears often, just for a moment, and measure it with method one. Or trace its inside edge on paper. If that is not possible, an adjustable ring is the safest choice: she can fine-tune it to fit.
The right ring, from the very first wear.
