Ring Size Guide: How to Measure Ring Size at Home?
Introduction Ring Size Guide
Looking to purchase a promise ring? But does not even know what ring size is best? No problem! It is very simple to find out either one by using some very practical methods of finding out ring sizes very accurately. The process of buying the correct ring size can also be a lot of fun.
This is the case because some simple techniques can be used for international ring sizes, and nearly everyone will fit into a basic category that can then be adjusted into a perfect fit.
To find a ring size, all you need are a ring size chart by Gemfly and a few measuring tools, as well as some tips on how to use them correctly to get the right size for your ring finger. So let's look at everything you'll need to measure ring sizes at home, including comprehensive instruction, as well as how to possibly find someone's ring size without asking.
Ring Size Chart
Ring size charts allow you to find an ideal fit by comparing your finger size to regional standards. The US and Canada use numbers, the UK uses letters, while Europe uses millimeter circumferences. One country's size may not correspond to another's due to historical and measurement variances.
If you are buying rings from another nation, use a ring size guide to convert techniques to ensure the rings fit properly, regardless of any country.
Table 1: Ring Inside Diameter and Circumference
Inside diameter |
Inside circumference |
||
(in) |
(mm) |
(in) |
United States, Canada and Mexico |
0.586 |
14.88 |
1.84 |
4 |
0.618 |
15.7 |
1.94 |
5 |
0.65 |
16.51 |
2.04 |
6 |
0.682 |
17.32 |
2.14 |
7 |
0.714 |
18.14 |
2.24 |
8 |
0.746 |
18.95 |
2.34 |
9 |
0.778 |
19.76 |
2.44 |
10 |
0.81 |
20.57 |
2.54 |
11 |
0.842 |
21.39 |
2.65 |
12 |
Table 2: Ring Size Conversion by Country
United States, Canada and Mexico |
(mm) ISO (Continental Europe) |
United Kingdom, Ireland, Australia, South Africa and New Zealand |
East Asia (China, Japan, South Korea), South America |
India |
Italy, Spain, Netherlands, Switzerland |
4 |
46.8 |
H |
7 |
- |
6.8 |
5 |
49.3 |
J+1⁄2 |
9 |
- |
9.3 |
6 |
51.9 |
L+1⁄2 |
11 |
12 |
11.9 |
7 |
54.4 |
N+1⁄2 |
14 |
14 |
14.4 |
8 |
57 |
P+1⁄2 |
16 |
17 |
17 |
9 |
59.5 |
R+1⁄2 |
18 |
- |
19.5 |
10 |
62.1 |
T+1⁄2 |
20 |
22 |
22.1 |
11 |
64.6 |
V+1⁄2 |
23 |
25 |
24.6 |
12 |
67.2 |
X+1⁄2 |
25 |
27 |
27.2 |
Tools You’ll Need to Measure Ring Size at Home
You'll need simple tools to measure your ring at home. The simplest method is to wrap a thread, dental floss, or paper around your finger and measure its length using a ruler. For your convenience, you may also download the Ring Size Chart to see what your measurement represents in terms of ring sizes.
And, for maximum accuracy, take your measurement toward the end of the day when your fingers are at their greatest potential.
Step-by-Step Guide: How to Measure Ring Size at Home
Finding the appropriate ring size is crucial when choosing a lovely ring like 14.5 Cts Australian Opal and White Diamond Ring in 18K White Gold for yourself or a loved one. A ring that doesn't fit might cause pain, loss, and costly resizing. Remarkably, five reliable methods exist for determining a ring's size at home. Here is step by step guide to measuring a ring size via the measuring tool (mentioned above) at home:
How to Measure Your Ring Size with String
String measuring is convenient for persons whose fingers broaden or shrink according to body temperature, time of day, or exercise. This approach can also be carried out at home to figure out your ring size and how likely it is to modify under certain settings. Here's how:
- First, gather measuring tools—a pen, scissors, and thread or thin paper.
- Next, wrap the thread around the finger base to size.
- Make sure the string fits comfortably without being too tight to avoid wrong outcomes. Mark the string overlap after wrapping.
- Lay the string flat next to a millimeter ruler to measure it.
- Finally, use a ring size chart to convert the string's dimension into your finger size.

Measuring Ring Size with a Ring Size Chart

Have a well-fitting ring? Use a ring sizer chart to quickly and correctly determine your size. How to do it:
- Choose a ring that fits perfectly on the finger you want to use as your new ring's base.
- Then, print a ring-size chart.
- Put your ring over the chart's circles.
- Move your ring around until you figure out the circle that fits your desired inner diameter—just inside but not touching the outside.
How to Measure Your Ring Size with Paper Strip
The paper strip is an efficient ring sizer substitute for quick measurements. Instructions for doing it with little materials:
- Things needed—a paper, pen, scissors, and ruler.
- Wrap the paper around your finger base without squeezing.
- Identify paper overlap.
- Lay the paper strip flat and measure from end to mark using a millimeter ruler.
- Find the ring size for your measured length using a chart.

How to Measure Your Ring Size with Ruler

By measuring an existing ring, you may find an identical size match. This requires just a millimeter ruler and your current ring. Here is a step guide to measuring:
- Measure the ring using a ruler. Measure the inner diameter of the ring (in millimeters) accurately.
- Calculate diameter by dividing by π (~3.14). The final result will be expressed in inches.
Note the millimeter measurement, for example, a ring measuring 17.3 mm would be a size 7.
How to Measure Your Ring Size with Ring Sizer
To find the ideal ring size, accuracy is crucial because even a few millimeters (mm) can make a difference. Here is a step guide to measuring via ring sizer:
- The first step is to get a ring size indicator. These can be found at both online and offline jewelry shops. It may be made of either plastic or metal.
- Slide the size indicator onto the finger you want to wear the ring on. It should fit properly but comfortably.
- Get your ring size. Use the size indication to get your size.

How to Find Out Someone's Ring Size without Asking Them
Picking out the perfect beautiful ring of Diamond Rings, Gemstone Rings, Engagement Rings, or Moissanite Rings for the other person can be challenging. Similar to a test. You can't ask directly for the ring size information when you're planning a surprise for someone. Asking about ring sizes might backfire. Here are several sneaky ways to indicate the size without revealing it:
- Measure another ring: You may steal a ring from the other person to measure them. Make sure the surprise ring for on the same plan finger.
- Take the recipient’s friend or relative help: Request your companion's or friend's size when buying a matching ring.
- Observe: Watch the rings the other person tries on while you browse for jewelry. Bring it home and compare it to a ruler.
- Try using a ring sizer: If you can trick your companion into putting on a ring sizer, it serves as an ideal cover for measuring.
Conclusion:
Jewelry, especially rings, must be the right size for comfort and satisfaction. Thus, a proper evaluation ensures a good match, whether you're proposing or shopping for jewelry. In other words, gather your materials, adhere to the procedures mentioned above, and set off on your search for the ideal ring!