Method 1: Measure the finished ring
To do this, you will need a special tool – an appendix, a caliper or a ring gauge.
Using mobile applications
For example, you can try Ring Sizer , “Ring Size Measurement” or “Ring Size: Measure Ring” , as well as web services from jewelry stores SBLESKOM , Diamond District , “Bronnitsky Jeweler” .
As a rule, the principle of operation of such applications is similar: to measure the jewelry, put it on the strip with the drawn ring. Move the slider until it appears inside your ring. Make sure that there is no white background between the ring in the application and yours. The number inside is the desired size.
Using a caliper
If you have such a tool at home, simply measure the inner diameter of the jewelry with it – and you will get the size of the ring. To do this, insert the jaws of the caliper , as shown in the picture, inside the ring and spread them to the edges until they stop. Look at what number you get on the scale. This is the size.
If you don’t have a caliper at hand, you can theoretically use a regular ruler. But it’s more difficult to measure the internal diameter with it – the data will be less accurate.
Using a ring gauge
If you have to find out the ring size regularly, for example, due to the specifics of your work, then it makes sense to get a professional device – a ring gauge. It is a cone-shaped structure with divisions. Such a tool is easy to find on marketplaces .
To find out your ring size, place it tightly on the ring gauge. The size of the jewelry will be the division located at the bottom edge of the ring.
Method 2: Measure your finger
You can use a jewelry finger gauge, a special app, or make do with improvised tools: ties or tailor’s tape.
Using a clamp
Wrap the clamp around the pin, fix it so that it can be removed with a little effort, but not tightly. Then there are several options:
- you can measure the inner diameter with a caliper;
- mark the location of the clamp on the clamp, straighten it and measure with a ruler;
- or use a ring gauge.
Variation of the method: instead of a collar, you can use a thread. But be prepared that you won’t be able to tie the end of the thread the first time and you’ll have to repeat it a couple of times. Make a few turns of the thread around your finger, fix it so that you can remove it. You can determine the size by the thread in two ways:
- if you put it on a ring gauge;
- if you cut a thread and measure the length with a ruler.
Using a tailor’s tape
Wrap the tape around your finger to measure the circumference. Use the chart to find out your ring size.
| Finger circumference, mm | Ring size |
| 47.1 | 15 |
| 48.7 | 15.5 |
| 50.3 | 16 |
| 51.8 | 16.5 |
| 53.4 | 17 |
| 55 | 17.5 |
| 56.5 | 18 |
| 58.1 | 18.5 |
| 59.7 | 19 |
| 61.3 | 19.5 |
| 62.8 | 20 |
| 64.4 | 20.5 |
| 66 | 21 |
| 67.5 | 21.5 |
| 69.1 | 22 |
Using applications
Several apps have the required function, for example Ring Sizer , Ring Sizer – Ring Fing , “Ring Sizer, ring size” . Any will do.
Place your finger so that its base is on the right edge of the phone, and place it between the two drawn stripes. The phalanx on which you are going to wear the ring should slightly cover the lines. If necessary, move the slider to adjust their position. The service will immediately give the ring size, bypassing the calculations of the finger circumference.
Using a finger meter
This jeweler’s tool can be found on any marketplace. It comes in two types:
- Tape with a scale. If you have such a finger gauge, then you need to use it in the same way as a clamp. The only difference between them is that the finger gauge already has a scale applied to it, and you will not need to calculate the finger circumference with a ruler – you can immediately compare the data with the table above and get the ring size .
- A set of plastic or metal rings of different diameters. The ring size is indicated on each ring in the set. Try on several rings of different diameters to find the most comfortable one for you. The ring should not squeeze your finger, be easy enough to remove, but not roll off.
How to take measurements: tips from a jeweler
1. It is best to measure the finger circumference during the day at room temperature. In the evening, and sometimes in the morning, as well as in the heat, fingers may swell, then the measurements will be unreliable.
2. Rounding of the obtained results depends on the ring model: if you plan to wear a narrow ring, then round down, if you prefer a wide ring (from 5-6 mm), round up.
3. It is better to choose a ring that covers the entire phalanx one size larger than usual: when wearing a very wide piece of jewelry, a vacuum is created under it and the finger swells. A looser ring in this case will squeeze the phalanx less.
4. On the contrary, it is better to choose an open ring one size smaller, since when worn it stretches a little due to the unclosed edges – it can slip off if it is too big.
5. If you want to determine the size of a ring that has acquired an oval shape due to long-term wear, you can use a caliper to measure the small and large diameters, add them together and divide by 2. The result will be the size of the ring. Although it is best to take a deformed piece of jewelry to a jewelry workshop so that a specialist can carefully straighten it.
