Ring Size Chart Guide: How to Measure Ring Sizes Accurately
Finding the perfect ring size is more than just a matter of fit—it’s about ensuring that a meaningful piece of jewellery feels comfortable and looks stunning every day.
Whether you’re shopping for yourself or a loved one, getting the right size adds confidence to your choice, ensuring that the ring sits perfectly and lasts a lifetime.
This comprehensive guide is designed to take the guesswork out of finding your ideal fit. From understanding the different systems used in British (UK) and American (US) ring sizes to practical tips on measuring at home, we’ll walk you through everything you need to know.
With our detailed ring size chart and helpful conversion tips, you can make an informed choice and find a ring size that feels just right.
Understanding Ring Sizes and Using a Ring Size Chart
Ring sizes are primarily determined by the circumference of the finger, measured in millimetres. Using a ring size chart is an easy way to determine the right size without the need for guesswork. Whether you’re shopping for yourself or searching for the perfect fit for a loved one, the chart below offers a quick reference to popular UK sizes and their corresponding circumferences.
Ring Size Chart (UK)
| Size (UK) | Circumference (mm) | Size (UK) | Circumference (mm) |
|---|---|---|---|
| A | 37.8 | N | 53.8 |
| B | 39.1 | O | 55.1 |
| C | 40.4 | P | 56.3 |
| D | 41.7 | Q | 57.6 |
| E | 42.9 | R | 58.9 |
| F | 44.2 | S | 60.2 |
| G | 45.5 | T | 61.4 |
| H | 46.8 | U | 62.7 |
| I | 48.0 | V | 64.0 |
| J | 48.7 | W | 65.3 |
| K | 50 | X | 66.6 |
| L | 51.2 | Y | 67.8 |
| M | 52.5 | Z | 68.5 |
Our wedding ring collection currently offers two main size options: J to P and Q to Z. If your perfect fit falls outside this range, we’re more than happy to create a bespoke ring tailored to your exact measurements.
Depth and Fit Considerations
When choosing a ring size, it’s also essential to consider the ring’s depth or thickness. Rings with deeper bands tend to fit more snugly, often requiring you to size up for a comfortable fit. This consideration is particularly important for wedding bands and other rings worn daily, ensuring they stay comfortable throughout the day.
How to Measure Ring Size at Home
If you’re looking to determine your ring size without visiting a jeweller, there are a few simple ways to measure it at home. Accurate measurement is essential, especially for rings that will be worn every day, like wedding bands. Here’s a step-by-step guide on how to measure ring size using common household items.
Method 1: Use a String or Paper Strip
- Cut a small strip of paper or string.
- Wrap it around the base of your finger snugly, but not too tight.
- Mark the point where the string or paper overlaps.
- Measure the length from the start to the marked point in millimetres.
- Use our ring size chart above to find the closest match to your measurement.
Method 2: Use a Ring Sizer
If you’re in the UK, a ring sizer tool is another accurate option. This tool allows you to try various sizes on your finger to find the one that fits best. A ring sizer provides a precise measurement that can be cross-referenced with our chart.
Tips for Accurate Sizing
- Measure your finger at the end of the day, as fingers tend to swell slightly, which can affect sizing.
- Avoid measuring your hands in very cold weather, as cold temperatures can temporarily shrink your fingers.
- If you’re measuring for a wider band, consider going half a size up for comfort.
Ring Size Chart: UK and US Conversions
Since ring sizes vary across regions, it’s important to understand the conversion between UK and US sizes, especially if you’re buying a ring internationally. In the UK, ring sizes are commonly represented by letters, while in the US, they are typically numbered. To make shopping easier, we’ve provided a UK-to-US ring size conversion chart for quick reference.
UK to US Ring Size Conversion Chart
| Size (UK) | Size (US) | Size (UK) | Size (US) |
|---|---|---|---|
| J | 5 | P | 8 |
| K | 5.5 | Q | 8.5 |
| L | 6 | R | 9 |
| M | 6.5 | S | 9.5 |
| N | 7 | T | 10 |
| O | 7.5 | U | 10.5 |
| P | 8 | V | 11 |
| Q | 8.5 | W | 11.5 |
| R | 9 | X | 12 |
| S | 9.5 | Y | 12.5 |
| T | 10 | Z | 13 |
Guide to Men’s Ring Sizes
Choosing the right ring size is essential for men, especially since a well-fitted ring provides both comfort and security. Men’s rings often feature wider bands, which may require a slightly larger size to accommodate the extra thickness comfortably. Our mens ring measurement chart is a practical resource for finding the best fit, particularly if you’re purchasing a ring to wear daily, such as a wedding band.
Popular Men’s Ring Sizes
In the UK, common mens ring sizes typically range from sizes P to Z, though many men find their perfect fit between R and T. Our guys ring size chart offers an easy way to find the right size based on your finger measurements in millimetres, helping to ensure a snug yet comfortable fit.
Men’s Ring Size Chart (UK)
| Size (UK) | Circumference (mm) | Size (UK) | Circumference (mm) |
|---|---|---|---|
| P | 56.3 | U | 62.7 |
| Q | 57.6 | V | 64.0 |
| R | 58.9 | W | 65.3 |
| S | 60.2 | X | 66.6 |
| T | 61.4 | Y | 67.8 |
This sizing guide helps you find the most common male ring sizes, ensuring your ring stays comfortable and secure through everyday activities.
Additional Sizing Tips for Men
Consider Depth and Width
Rings with a thicker band width may require you to size up for the most comfortable fit, especially for wider wedding bands.
Use a Proper Ring Sizer
For accuracy, use a physical ring sizer or consult with a jeweller when possible, as wider bands can feel tighter than expected.
Measure at the Right Time
Since finger sizes can vary based on the time of day and temperature, measuring in the evening can give the most reliable size.
Guide to Women’s Ring Sizes
Finding the right ring size is equally important for women, particularly for rings that are worn daily, such as wedding and engagement rings. Women’s rings are often designed with finer bands, but accurate sizing is still essential for comfort and to ensure that the ring stays secure on the finger. Our women’s ring size chart provides a practical reference, helping you find the perfect fit with ease.
Popular Women’s Ring Sizes
In the UK, common ring sizes for women generally fall between J and P. However, some women may prefer a larger or smaller fit depending on the finger’s shape and the ring’s design. The chart below provides approximate measurements for popular ring sizes in the UK, ensuring a comfortable and stylish fit.
Women’s Ring Size Chart (UK)
| Size (UK) | Circumference (mm) | Size (UK) | Circumference (mm) |
|---|---|---|---|
| J | 48.7 | N | 53.8 |
| K | 50.0 | O | 55.1 |
| L | 51.2 | P | 56.3 |
| M | 52.5 | Q | 57.6 |
Additional Sizing Tips for Women
Consider Band Width
Just like with men’s rings, the width of the band can impact fit. Thicker bands may require a half-size up for comfort, while slender bands typically fit closer to true size.
Measure Multiple Times
For the most accurate size, try measuring at different times of the day and in different temperatures. Fingers tend to expand slightly in warmer conditions, so measuring in the evening provides the most reliable result.
Use a Ring Sizer for Precision
While home methods work well, using a physical ring sizer or consulting a jeweller is ideal for precise sizing.
Where to Buy
At The Wedding Rings Co., we are dedicated to bringing you exceptional quality, transparency, and unbeatable prices. With decades of experience from our beginnings in London’s Hatton Garden, our family-run business ensures that each ring is crafted with certified, high-quality materials.
Whether you’re looking for a timeless design or a bespoke creation, we’re here to make your vision a reality — and we won’t be beaten on price.
Our collection includes different types of wedding rings to suit every taste, and we’re here to help you find the best type of wedding ring to complete your love story. Start your journey with The Wedding Rings Company.
