How to measure your ring size

Finding the perfect ring size is crucial to ensuring a comfortable and secure fit. Follow the detailed steps below to accurately measure your finger size:

First, gather your tools. A flexible, non-stretchable measuring tape is ideal, but if you don't have one, a piece of
string or a strip of paper will suffice, along with a ruler. You'll also need a marker or pen to mark the string or paper if using these tools, and a ring size chart, which is easily available online or at jewelry stores.

Timing is key when measuring your ring size. Your fingers can swell or shrink throughout the day due to various factors like temperature, humidity, and
physical activity (Read more below!). For the most accurate measurement, measure your finger at the end of the day when it’s likely to be at its largest

With a measurement tape

Take note of the measurements in millimeters and use the comparison chart or measurement guide PDF to find your ring size.

1. To measure your finger, gently wrap the measuring tape around the base of your finger. Ensure it’s snug but not too tight, allowing for a comfortable fit without squeezing. If you’re using a piece of string or a strip of paper instead, mark the point where the end meets the rest of the material. Your ring needs to fit over your knuckle, which is often the widest part of your finger. Therefore, to ensure a comfortable fit, measure both the base of your finger and around your knuckle. If your knuckle is significantly larger than the base of your finger, consider using the average of these two measurements. This way, your ring will fit comfortably over the knuckle but not be too loose at the base.

2. Next, record the measurement. If you are using a measuring tape, directly read the measurement from the tape at the point where it overlaps. If you are using a string or paper, lay the marked string or paper flat on a surface and measure its length with a ruler. Ensure the ruler is placed straight and the string or paper is not stretched, as this could lead to inaccurate measurements.

3. Then, use a ring size chart to convert your measurement to the corresponding ring size. Ring size charts are easily available online and typically include sizes for different regions, such as the US, UK, and Europe. Be sure to select the correct chart for your region to avoid any discrepancies. The chart will match your measurement to a specific ring size, making it easy to find the right fit.

4. It's important to consider the dominant hand factor when measuring your ring size. The same finger on your left and right hands may differ slightly in size. Typically, the dominant hand—the one you use more frequently—might be slightly larger due to increased muscle development and usage. Therefore, measure the specific finger on the hand you plan to wear the ring. This ensures a more accurate fit, as even minor differences can affect the comfort and security of the ring.

Other ways to find your size

Apart from using a measuring tape, there are several other ways to find your size.
The videos below show a few different ways.

1. Measure with printed PDF

2. Measure with PDF on Mobile

3. Measure with cut-out-ruler

If you don't have a ring size chart or
measuring tape, you can still measure your ring size accurately with just a
ruler. Here's how: Take a flexible, non-stretchy string or strip of paper, wrap
it around the base of your finger, and mark where it overlaps. Lay it flat and
measure the length in millimeters. Use an online ring size chart to find your
size, accounting for regional differences. For wider bands, consider going up
half a size for comfort. Repeat this process at different times of the day for
the best fit. For a step-by-step visual guide, check out our YouTube video
guide.

4. Measure with measuring tape

To ensure accurate ring size measurement with
a string, make sure it fits comfortably around your finger—neither too tight
nor too loose. A tight string may lead to an overly snug ring, while a loose
one might cause the ring to slip off. After marking and measuring the string,
compare your measurement with multiple ring size charts for consistency. For
better precision, use a minimally stretchy material like embroidery floss.
Double-check your measurements at different times of the day to account for finger
size fluctuations. For a step-by-step guide, check out our YouTube video
tutorial.

With a ring sizer (ring size calculator)

Check out this PDF for a comprehensive guide on measuring your ring size. Whether you're measuring for a new purchase or checking your size for a special occasion, these tips will guide you through the process with ease. Avoid common mistakes and ensure your ring feels comfortable and secure with our step-by-step instructions. Follow our expert advice to avoid common pitfalls and ensure your ring fits comfortably and securely. Download the guide today and make sure your next ring purchase fits like a dream.

How to measure your ring size

Ring size chart 

Ring size charts help you find the right fit by comparing your finger measurement to standardized sizes across different regions. Different countries use various sizing systems—like numbers in the US and Canada, letters in the UK, and millimeter circumferences in Europe. These variations exist due to historical and measurement differences, so a size in one country might not match the same size elsewhere. When buying rings internationally, use a ring size chart to convert between systems and ensure a perfect fit.  

US/Canada 

UK/Australia 

Europe 

Japan 

Switzerland 

4.0 

H 

46.5 

7 

7.75 

4.5 

I 

48.0 

8 

8.5 

5.0 

J 

49.0 

9 

9.25 

5.5 

K 

50.3 

10 

9.75 

6.0 

L 

51.5 

11 

10.25 

6.5 

M 

53.1 

12 

11.0 

7.0 

N 

54.4 

13 

11.75 

7.5 

O 

55.7 

14 

12.25 

8.0 

P 

57.0 

15 

13.0 

8.5 

Q 

58.3 

16 

13.5 

9.0 

R 

59.5 

17 

14.25 

9.5 

S 

60.8 

18 

15.0 

10.0 

T 

62.1 

19 

15.75 

10.5 

U 

63.4 

20 

16.25 

11.0 

V 

64.6 

21 

17.0 

11.5 

W 

65.9 

22 

17.75 

12.0 

X 

67.2 

23 

18.25 

12.5 

Y 

68.5 

24 

19.0 

13.0 

Z 

69.7 

25 

19.75 

13.5 

Z+1 

71.0 

26 

20.25 

14.0 

Z+2 

72.3 

27 

21.0 

14.5 

Z+3 

73.6 

28 

21.75 

15.0 

 

74.8 

29 

22.5 

 

Ring size by cm or inches 

In the US and Canada, the ring sizes are numerical and do not directly correspond to inches or centimeters. The sizes are derived from the internal circumference or diameter of the ring, but the size numbers themselves are part of a standardized scale. 

In the UK and Australia, the ring sizes use an alphabetical system (e.g., H, I, J) rather than being directly tied to measurements in inches or centimeters. Similar to the US system, these sizes correspond to specific internal circumferences or diameters, but the letters themselves are part of a unique scale.