Finding the right ring size can be tricky, especially with different countries using different systems. Our Ring Conversion Size Chart makes it easier to find your perfect fit, no matter where you are. It’s important to consider these size differences, as choosing the wrong fit can cause discomfort or resizing issues later.
Ring Conversion Size Chart
Ring Size Chart US
| Diameter (mm) | Circumference (mm) | US & Canada Ring Size |
| 14.1 | 44.2 | 3 |
| 14.4 | 45.5 | 3.5 |
| 14.9 | 46.8 | 4 |
| 15.3 | 48.1 | 4.5 |
| 15.7 | 49.3 | 5 |
| 16.1 | 50.6 | 5.5 |
| 16.5 | 51.8 | 6 |
| 16.9 | 53.1 | 6.5 |
| 17.3 | 54.3 | 7 |
| 17.7 | 55.6 | 7.5 |
| 18.1 | 56.9 | 8 |
| 18.5 | 58.1 | 8.5 |
| 18.9 | 59.4 | 9 |
| 19.4 | 60.9 | 9.5 |
| 19.8 | 62.2 | 10 |
| 20.2 | 63.5 | 10.5 |
| 20.6 | 64.7 | 11 |
| 21 | 66.0 | 11.5 |
| 21.4 | 67.2 | 12 |
| 21.8 | 68.5 | 12.5 |
| 22.2 | 69.7 | 13 |
| 22.6 | 69.13 | 13.5 |
| 23 | 70.15 | 14 |
| 23.4 | 73.51 | 14.5 |
| 23.8 | 74.77 | 15 |
| 24.2 | 76.03 | 15.5 |
| 24.6 | 77.28 | 16 |
Ring Size Chart UK
| Diameter (mm) | Circumference (mm) | UK Ring Size |
| 13.7 | 43.1 | A |
| 14.0 | 44.0 | B |
| 14.3 | 44.9 | C |
| 14.6 | 45.8 | D |
| 14.9 | 46.7 | E |
| 15.2 | 47.7 | F |
| 15.5 | 48.6 | G |
| 15.9 | 49.5 | H |
| 16.2 | 50.4 | I |
| 16.5 | 51.4 | J |
| 16.8 | 52.3 | K |
| 17.2 | 53.2 | L |
| 17.5 | 54.1 | M |
| 17.8 | 55.1 | N |
| 18.1 | 56.0 | O |
| 18.5 | 56.9 | P |
| 18.8 | 57.8 | Q |
| 19.1 | 58.7 | R |
| 19.4 | 59.7 | S |
| 19.7 | 60.6 | T |
| 20.1 | 61.5 | U |
| 20.4 | 62.5 | V |
| 20.7 | 63.4 | W |
| 21.0 | 64.3 | X |
| 21.3 | 65.2 | Y |
| 21.7 | 66.2 | Z |
| 22.0 | 67.1 | Z+1 |
| 22.3 | 68.0 | Z+2 |
| 22.6 | 69.0 | Z+3 |
| 23.0 | 69.9 | Z+4 |
| 23.3 | 70.8 | Z+5 |
| 23.6 | 71.7 | Z+6 |
| 23.9 | 72.7 | Z+7 |
| 24.2 | 73.6 | Z+8 |
| 24.6 | 74.5 | Z+9 |
| 24.9 | 75.4 | Z+10 |
Ring Size Chart ( In Inch)
| Inside Circumference: IN | Inside Circumference: MM | US, Canada, Mexico | UK, Australia, Ireland, New Zealand, South Africa |
| 1.74 | 44.2 | 3 | F |
| 1.77 | 44.8 | 3.25 | F 1/2 |
| 1.79 | 45.5 | 3.5 | G |
| 1.82 | 46.1 | 3.75 | G 1/2 |
| 1.84 | 46.8 | 4 | H |
| 1.87 | 47.4 | 4.25 | H 1/2 |
| 1.89 | 48 | 4.5 | I |
| 1.92 | 48.7 | 4.75 | J |
| 1.94 | 49.3 | 5 | J 1/2 |
| 1.97 | 50 | 5.25 | K |
| 1.99 | 50.6 | 5.5 | K 1/2 |
| 2.02 | 51.2 | 5.75 | L |
| 2.04 | 51.9 | 6 | L 1/2 |
| 2.07 | 52.5 | 6.25 | M |
| 2.09 | 53.1 | 6.5 | M 1/2 |
| 2.12 | 53.8 | 6.75 | N |
| 2.14 | 54.4 | 7 | N 1/2 |
| 2.17 | 55.1 | 7.25 | O |
| 2.19 | 55.7 | 7.5 | O 1/2 |
| 2.22 | 56.3 | 7.75 | P |
| 2.24 | 57 | 8 | P 1/2 |
| 2.27 | 57.6 | 8.25 | Q |
| 2.29 | 58.3 | 8.5 | Q 1/2 |
| 2.32 | 58.9 | 8.75 | R |
| 2.34 | 59.5 | 9 | R 1/2 |
| 2.37 | 60.2 | 9.25 | S |
| 2.39 | 60.8 | 9.5 | S 1/2 |
| 2.42 | 61.4 | 9.75 | T |
| 2.44 | 62.1 | 10 | T 1/2 |
| 2.47 | 62.7 | 10.25 | U |
| 2.49 | 63.4 | 10.5 | U 1/2 |
| 2.52 | 64 | 10.75 | V |
| 2.54 | 64.6 | 11 | V 1/2 |
| 2.57 | 65.3 | 11.25 | W |
| 2.59 | 65.9 | 11.5 | W 1/2 |
| 2.62 | 66.6 | 11.75 | X |
| 2.65 | 67.2 | 12 | X 1/2 |
| 2.68 | 68.1 | 12.25 | Y |
| 2.71 | 68.5 | 12.5 | Z |
| 2.72 | 69.1 | 12.75 | Z 1/2 |
| 2.75 | 69.7 | 13 | — |
The Different Types of Ring Size Systems
Ring sizes differ across countries, with systems like the US, UK, European, and Japanese measurements. Each system has its strengths, but converting between them can be confusing.
Understanding these differences is crucial, as selecting the wrong size could lead to discomfort or the need for costly resizing later on.
How to Measure Your Finger for a Ring
To ensure your ring fits perfectly, you need to measure your finger accurately—here’s how you can do it at home. Start by wrapping a piece of string or a strip of paper around your finger and marking the spot where it overlaps.
Then, measure the length with a ruler. While this method is easy, keep in mind that your finger’s size can change throughout the day due to temperature or activity, so it’s best to measure when your fingers are at a normal size.
Ring Size Conversion Chart
Our Ring Size Conversion Chart simplifies the process by showing the equivalent sizes between different measurement systems. This chart helps you quickly convert between US, UK, European, and other systems, making it easier to find your perfect fit.
However, be aware that different brands may have slight variations in sizing. So, while the chart provides a helpful guide, it’s always a good idea to double-check with the seller or jeweler before making a purchase, ensuring the best fit for your finger.
Tips for Choosing the Right Ring Size
While converting sizes is helpful, knowing other tips can ensure that your ring fits comfortably all day long. First, consider the width of the band—wider bands often require a slightly larger size. Additionally, measure your finger at different times of day since it can fluctuate due to temperature or activity.
Lastly, if you’re unsure, try on similar rings before purchasing. Taking these factors into account will help you achieve the perfect fit and avoid discomfort or resizing later.
Common Mistakes to Avoid When Measuring Ring Size
Measuring your ring size can be deceptively simple, but there are a few common mistakes that can lead to an incorrect fit. One mistake is not measuring at the right time—fingers are often smaller in the morning and larger in the evening.
Another mistake is not accounting for ring width; wider bands require slightly larger sizes. Additionally, using inaccurate measuring tools like string or paper without proper tension can throw off your measurements. Avoid these errors to ensure a more accurate fit.
Conclusion
With the right tools and knowledge, finding your perfect ring size is easier than ever. Use our Ring Conversion Size Chart to confidently choose the best fit for your ring. Remember, factors like band width and timing can affect your measurement, so consider all aspects to ensure a comfortable fit.
FAQs
How do I know if I’m measuring my ring size correctly at home?
To measure your ring size accurately at home, use a piece of string or a strip of paper to wrap around your finger. Mark where it overlaps, then measure the length with a ruler. Ensure that the string or paper is snug but not tight. Remember, it’s best to measure when your fingers are at a normal size, neither too cold nor too warm.
Why do ring sizes differ between countries?
Ring sizes differ because each country uses its own measurement system. For example, the US uses a numeric system, while the UK uses letters, and Europe uses a numeric measurement based on millimeters. Our Ring Size Conversion Chart helps you convert between these different systems, ensuring you find the correct size no matter where you’re located.
Can I resize a ring if it’s too big or too small?
Yes, most rings can be resized, but it’s best to check with a jeweler before making any adjustments. Some rings, particularly those with intricate designs or gemstones, may be difficult or expensive to resize. Always aim for an accurate size to avoid the need for resizing, which can affect the ring’s design or structure.