Ring Size Chart
Finding the perfect ring is an intimate experience. Whether it is a symbol of a milestone, a gift for a loved one, or a personal talisman you intend to wear every day, the harmony between the jewellery and its wearer begins with the perfect fit. However, ordering jewellery online often brings a common hesitation: ensuring the size is correct. To assist you in this journey, we have curated a comprehensive guide on how to measure your ring size at home, combining traditional sizing principles with easy-to-follow methods.

What is My Ring Size?
Ring size is not merely a number; it is the precise measurement of the inner circumference of a ring, ensuring it aligns with the anatomy of your finger. A comprehensive ring size guide is essential because a ring that fits correctly should slide over your knuckle with a little friction but sit snugly at the base of your finger without spinning.
The goal is to find a balance where the ring is secure enough not to fall off, yet loose enough to be removed without struggle. Accurate sizing ensures that the intricate details and craftsmanship of your Sefa Huyuk piece are displayed perfectly, providing you with both comfort and confidence.
Essential Ring Sizing Principles and Tips
Before you begin measuring, there are a few golden rules to ensure accuracy. Our fingers are not static; they change slightly due to lifestyle, weather, and time of day. To determine your ring size accurately, keep the following principles in mind:
-
Timing the Measurement: Always measure your finger at the end of the day. Fingers tend to be smaller in the morning and slightly swollen by the evening. Measuring late in the day ensures your ring will be comfortable around the clock.
-
Environmental Factors: Avoid measuring on unusually hot or cold days. Cold weather can cause your fingers to shrink, while heat can cause them to swell. Measure your finger at room temperature for the most reliable result.
-
The "Fit Rule": If your ideal fit falls between two sizes, it is always safer to choose the larger one. A slightly looser fit is far more comfortable than a ring that restricts circulation.
-
A Note on Tradition: If you are measuring for a specific occasion, remember that engagement rings and wedding bands are traditionally worn on the fourth finger of the left hand. Be sure to measure the exact finger on the correct hand, as the dominant hand often has slightly larger fingers.
How to Measure Your Ring Size at Home (Step-by-Step Methods)
Finding your precise measurement requires a methodical approach. Whether you are searching for how to find your ring size for a personal purchase or discreetly checking for a gift, we have outlined three effective methods below. Choose the one that best suits the tools you have at hand.
Method 1: Measuring Finger Circumference (Using String or Tape Measure)

This is the most accessible method for how to measure your finger if you do not have a ring sizer. It relies on determining the circumference of your finger and converting it to a standard size.
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Prepare Your Tools: Take a piece of non-stretchy string, a strip of paper, or a soft, flexible measuring tape.
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Wrap Your Finger: Wrap the string or tape around the base of the finger you intend to wear the ring on. Ensure it is snug but not too tight.
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Mark the Spot: Use a pen to mark the point where the string or paper overlaps.
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Measure the Length: Unroll the string or paper and place it flat against a ruler. Measure the distance from the end to your mark in millimetres (mm).
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Find Your Size: This measurement is your finger's circumference. Compare this number to the "Circumference" column in our Ring Size Chart to find your corresponding size.
Method 2: Measuring Ring Size

If you already own a ring that fits the intended finger perfectly, you can determine your size by simply measuring its diameter. This method is particularly useful if you are buying a gift and have access to one of the recipient's rings.
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Select the Ring: Choose a ring that fits well on the specific finger you are buying for. Remember, ring sizes vary between fingers and dominant hands.
-
Place on a Flat Surface: Lay the ring on a flat, well-lit surface.
-
Measure the Inside: Use a ruler with clear millimetre markings. Place the ruler on top of the ring and measure the inside diameter (the distance across the hole).
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Crucial Note: Ensure you measure the widest part of the circle. Do not include the metal band itself in your measurement; only measure the empty space inside.
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Record the Measurement: Note down the measurement in millimetres (e.g., 16.5 mm).
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Find Your Match: Compare your measurement to the "International Ring Sizing Chart" below. Match your diameter to the closest size.
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When in Doubt: If your measurement falls between two sizes (for example, 16.7 mm), we recommend choosing the larger size for a more comfortable fit.
Method 3: Using a Plastic Ring Sizer

For the most professional results at home, using a dedicated tool is often best. This method answers how to know ring size with near-jeweller accuracy.
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Test the Fit: Place the plastic sizer on your finger and tighten it until it feels comfortable.
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The "Shake Test": A correct fit should be snug enough so that it does not fall off when you shake your hand, but loose enough to slide over your knuckle with a little resistance.
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Simulate Wear: Try the sizer on at different times of the day (morning, afternoon, evening) to account for natural swelling.
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Experiment: Try a half size up and a half size down to confirm which one feels most natural.
Ring Size Charts and Conversions
To assist our global clientele, we have compiled comprehensive conversion charts. Whether you are shopping from the UK, the US, or Europe, you can find your corresponding size below.
International Ring Sizing Chart (Diameter in MM)
Use this chart if you have measured the inside diameter of an existing ring (Method 2). The diameter measurements correspond to the inside of the ring, excluding the metal band itself.
|
Diameter (mm) |
US & Canada |
UK & Australia |
Europe |
Singapore & Japan |
Hong Kong |
Switzerland |
|
14.1 mm |
3 |
F 1/2 |
44 |
4 |
6 |
4 |
|
14.5 mm |
3.5 |
G |
45 |
5 |
7 |
5 1/4 |
|
14.9 mm |
4 |
H 1/2 |
47 |
7 |
8 |
6 1/2 |
|
15.3 mm |
4.5 |
I 1/2 |
48 |
8 |
9 |
7 3/4 |
|
15.7 mm |
5 |
J 1/2 |
49 |
9 |
10 |
9 |
|
16.1 mm |
5.5 |
K 1/2 |
50 |
10 |
11 |
10 |
|
16.5 mm |
6 |
L 1/2 |
52 |
11 |
13 |
12 |
|
16.9 mm |
6.5 |
M 1/2 |
53 |
12 |
14 |
14 |
|
17.3 mm |
7 |
N 1/2 |
54 |
14 |
15 |
15 1/4 |
|
17.7 mm |
7.5 |
O 1/2 |
56 |
15 |
16 |
16 1/2 |
|
18.1 mm |
8 |
P 1/2 |
57 |
16 |
17 |
17 3/4 |
|
18.5 mm |
8.5 |
Q 1/2 |
58 |
17 |
18 |
18 3/4 |
|
19.0 mm |
9 |
R 1/2 |
59 |
18 |
19 |
20 |
|
19.4 mm |
9.5 |
S 1/2 |
61 |
19 |
21 |
21 |
|
19.8 mm |
10 |
T 1/2 |
62 |
20 |
22 |
21 1/2 |
|
20.2 mm |
10.5 |
U 1/2 |
63 |
22 |
23 |
22 3/4 |
|
20.6 mm |
11 |
V 1/2 |
65 |
23 |
24 |
24 |
|
21.0 mm |
11.5 |
W 1/2 |
66 |
24 |
25 |
25 |
|
21.4 mm |
12 |
X 1/2 |
67 |
25 |
27 |
27 1/2 |
|
21.8 mm |
12.5 |
Z |
68 |
26 |
28 |
28 3/4 |
|
22.2 mm |
13 |
Z+1 |
70 |
27 |
— |
— |
|
22.6 mm |
13.5 |
Z+2 |
— |
— |
— |
— |
Circumference Conversion Chart (CM and Letter Sizes)
Use this chart if you have measured the circumference of your finger using string or tape (Method 1).
|
Finger Circumference (cm) |
US Size |
UK Size |
FRANCE Size |
|
4.14 cm |
2 |
D |
41.5 |
|
4.29 cm |
2.5 |
E |
42.75 |
|
4.41 cm |
3 |
F |
44 |
|
4.54 cm |
3.5 |
G 1/2 |
45.5 |
|
4.70 cm |
4 |
H 1/2 |
47 |
|
4.80 cm |
4.5 |
I 1/2 |
48 |
|
4.90 cm |
5 |
J 1/2 |
49.5 |
|
5.05 cm |
5.5 |
L |
50.5 |
|
5.18 cm |
6 |
M |
52 |
|
5.30 cm |
6.5 |
N |
53 |
|
5.43 cm |
7 |
O |
54.5 |
|
5.56 cm |
7.5 |
P |
56 |
|
5.68 cm |
8 |
Q |
57 |
|
5.81 cm |
8.5 |
R |
58.5 |
|
5.94 cm |
9 |
S |
59.5 |
|
6.07 cm |
9.5 |
T |
61 |
|
6.19 cm |
10 |
T 1/2 |
62.5 |
|
6.32 cm |
10.5 |
U 1/2 |
63.5 |
|
6.45 cm |
11 |
V 1/2 |
65 |
|
6.57 cm |
11.5 |
W 3/4 |
66 |
|
6.73 cm |
12 |
Y |
67.5 |
|
6.85 cm |
12.5 |
Z |
69 |
|
6.98 cm |
13 |
Z+1 |
70 |
Now Discover Your Next Favourite Ring!
Now that you have determined your perfect fit, the only question remaining is: which piece speaks to you?

At Sefa Huyuk Jewels, our collection invites you to explore a world of authentic craftsmanship. Whether you are drawn to the rich, warm tones of our Gold Vermeil Rings or the historical elegance of our Roman Rings, knowing your size ensures a flawless experience. Perhaps you are looking to add a pop of regal colour with our vibrant Amethyst Rings, or make a bold impression with our signature Pavel Statement Rings. For those marking a forever moment, our timeless Eternity Rings await. Browse our full selection of Rings today and find the treasure that was made for you.