Ring Size Conversion Chart - Women & Men

Ring size conversion at a glance#

International ring size conversion matches one finger circumference across systems: the US and Canada use numbers, the UK and Australia use letters, and France and most of Europe use the circumference in millimeters. Ring sizes are unisex, so the same value covers women and men.

To convert a women’s ring size to a men’s you keep the same number, because the size measures the finger and not the wearer. A US 7 is a UK and Australian N 1/2, a French 54 and 54.4 mm (2.14 in) around. A US size 6 is a UK L 1/2 (French 51.5), and a US 9 is a UK R 1/2 (French 59).

These conversions are read directly from the ring size chart below, which lists every US size from 3 to 13 against UK letters, French and German numbers, millimeters and inches. Sizes vary slightly by country and jeweler, so measure your finger and read it off the printable chart where you can. For more, see the men’s ring size chart and the international shoe size conversion chart.

Key Takeaways#

• Measure Your Ring Size at Home: Our printable ring size chart lets you find your ring size easily without leaving home. It includes international sizes to ensure a perfect fit anywhere in the world.
• Consider Influencing Factors: Finger shape, temperature, and band width can affect ring sizing. Taking these into account (and possibly sizing up) can improve comfort.
• Know Resizing Limitations: While many rings can be resized, some styles like eternity bands or rings made of materials like titanium cannot. Getting the right size initially is crucial for these designs.

You can find your ring size at home without a trip to the jeweler. Print the chart at 100% scale, measure your finger with the string or paper method below, and read your size straight off the chart. The chart includes international sizes, so the same measurement works for rings bought anywhere.

For the most accurate result, measure your ring size three to four times and use the most consistent reading. Finger size changes slightly through the day, so repeated measurements smooth out the variation. The method covers the full range of men's and women's sizes.

How to Print and Use the Ring Size Chart#

Ready to find your ring size? Here's how to use our printable chart effectively:

1. Print the Chart: Download and print the printable ring size chart (PDF) at its actual size. In your printer settings, select 'Actual Size' or ensure scaling is set to 100%. This guarantees accurate measurements.
2. Measure Your Finger:
   • Option 1: String Method
     • Wrap a piece of non-stretchy string around the base of your finger.
     • Mark where the string overlaps.
     • Lay the string flat and measure its length in millimeters.
     • Use the chart to find your corresponding ring size.
   • Option 2: Paper Strip Technique
     • Cut a thin strip of paper from the bottom of the chart.
     • Wrap it around your finger like a tape measure.
     • Mark where the paper overlaps.
     • Measure the length and compare it to the chart.
3. Determine Your Size: Match your measurement to the sizes listed on the chart to find your perfect fit.

If the fit isn't quite right, see the resizing section further down.

No printer? No problem. You can measure your ring size using everyday items.

String Method#

1. Wrap a String: Use a non-stretchy string around your finger's base.
2. Mark the Point: Where the string overlaps.
3. Measure the Length: Use a ruler to measure the string in millimeters.
4. Find Your Size: Match the measurement to a ring size chart.

Tip: Avoid stretchy materials for accuracy.

Paper Strip Technique#

1. Cut a Paper Strip: About 10mm wide.
2. Wrap Around Finger: Similar to the string method.
3. Mark and Measure: Mark where it overlaps and measure the length.
4. Determine Size: Compare to the chart.

Ruler Measurement#

1. Use a Strip of Paper: Wrap it around your finger.
2. Mark Overlap Point: Where the paper meets.
3. Measure Circumference: Use a ruler for length.
4. Calculate Diameter: Divide the circumference by 3.14 (π).
5. Match to Chart: Find your size based on the diameter.

Understanding International Ring Size Conversions#

Ring sizes aren't uniform worldwide; they vary by country and jeweler. Here's how to navigate international sizing:

• US Sizes: Typically run from 3 to 13 for adults, including half and quarter sizes.
• UK Sizes: Use letters from A to Z.
• European Sizes: Numerical sizes that follow finger circumference, from 44 to 69 in this chart.

Converting Sizes:

• US to UK: UK sizes are letters. From the chart: a US 6 is an L 1/2, a US 7 is an N 1/2, a US 8 is a P 1/2, a US 9 is an R 1/2 and a US 10 is a T 1/2.
• US to European: European sizes track the finger circumference in millimeters. A US 5 is a 49, a US 7 is a 54, a US 9 is a 59 and a US 11 is a 64.

Having this knowledge is handy when purchasing rings from international sellers.

Ring Size Chart for Men and Women#

The chart below covers US and international sizes for women and men in one place. For men-specific measuring tips, see the men's ring size chart.

• Women's Average Sizes: Most commonly between sizes 5 and 7, with size 6 being the most popular.
• Men's Average Sizes: Typically between sizes 8 and 12, with size 9 or 10 being most common.

Using the Chart:

1. Locate your measurement on the chart.
2. Find the corresponding ring size in US, UK, and European sizes.
3. Consider half sizes if you're between two sizes for a better fit.

Factors Affecting Ring Sizing#

Several elements can influence your ring size:

Finger Shape and Comfort#

• Finger Shape: Tapered or wider knuckles can affect fit.
• Comfort Fit Rings: Designed with a slightly domed interior for easier sliding over knuckles.

Tip: A ring should fit snugly but comfortably, sliding on easily and coming off with slight resistance.

Temperature and Swelling#

• Heat: Fingers may swell in warm temperatures, increasing ring size.
• Cold: Fingers can shrink in cooler conditions, decreasing ring size.
• Time of Day: Fingers often swell later in the day.

Recommendation: Measure your finger at the end of the day at room temperature for the most accurate size.

Wider Bands and Half Sizes#

• Wider Bands: May require a larger size due to more coverage on the finger.
• Half Sizes: Opt for a half size up if you're between sizes for better comfort.

Finding Your Partner's Ring Size Discreetly#

Planning a surprise? Here's how to find out their ring size subtly.

Borrowing an Existing Ring#

1. Choose a Ring They Wear: Preferably from the correct finger.
2. Trace or Measure: Outline the inside on paper or press into a soft material.
3. Use a Jeweler: Bring the ring or tracing to determine the size.

Ensure the ring is returned promptly to avoid suspicion.

Enlisting Friends and Family#

• Ask for Help: Trusted friends or family might know or can find out casually.
• Gift Discussions: They can engage in conversations about jewelry to gather information.

Discretion is key to maintaining the surprise.

Ring Resizing and Style Limitations#

Even with careful measuring, resizing may be necessary.

The Resizing Process#

• Making Smaller: A jeweler removes a small piece and rejoins the band.
• Making Larger: The band is stretched or an extra piece of metal is added.

Professional resizing ensures the ring remains intact and beautiful.

Styles That Can't Be Resized#

• Eternity Bands: Stones encircle the entire band, leaving no room for adjustment.
• Certain Materials: Metals like tungsten, titanium, stainless steel, and ceramics can't be resized due to their hardness or brittleness.
• Intricate Designs: Resizing may damage detailed patterns or engravings.

For these styles, accurate initial sizing is essential.

Finding the perfect ring size is easier than you might think. By using our printable chart or household items, considering factors like finger shape and temperature, and understanding the limitations of resizing, you can confidently select a ring that fits beautifully. And if you're planning a surprise, the discreet methods above can help you find the right size without spoiling the moment.

Frequently Asked Questions (FAQs)

What is the most accurate way to measure ring size at home?

Measuring with a printable ring size chart is highly accurate. Wrap a non-stretchy string or paper around your finger, mark where it overlaps, measure the length, and compare it to the chart. Ensure your printer settings are set to 'Actual Size' for precision.

Can ambient temperature affect my ring size measurement?

Yes, temperature can cause your fingers to swell or shrink, affecting ring size. Measure your finger at room temperature and consider taking multiple measurements at different times for accuracy.

Why is it important to consider the ring band width when choosing a size?

Wider bands cover more of your finger, often requiring a slightly larger size for comfort. Always consider the band's width when determining your size.

How can I find out someone's ring size without them knowing?

Discreetly borrow a ring they wear and measure it, or enlist the help of friends or family to casually find out.

Are there ring styles that cannot be resized?

Yes, styles like eternity bands and rings made from materials like tungsten or ceramic cannot be resized. Accurate sizing at purchase is important for these rings.

How does finger shape influence ring size selection?

Finger shape affects fit. Larger knuckles may require a bigger size to slide the ring on, even if it means a looser fit at the base.

What should I do if the ring I bought is the wrong size?

Consult a professional jeweler about resizing options. If resizing isn't possible, consider exchanging the ring for the correct size.

How do international ring sizes differ from US sizes?

International sizes vary; for example, UK uses letters while Europe uses different numbers. Use a conversion chart to find the equivalent size.

Can I measure ring size using a ruler?

Yes. Wrap a paper strip around your finger, mark the overlap, measure it with a ruler, and use a size chart to find your ring size.

What is the average ring size for men and women?

Women's average sizes range from 5 to 7, with size 6 most common. Men's average sizes are between 8 and 12, commonly size 9 or 10.

Are men's and women's ring sizes the same?

Yes. Ring sizes are unisex: the size measures the finger, not the wearer. A women's size 7 and a men's size 7 are both 54.4 mm (2.14 inches) around, so to convert a women's ring size to a men's you keep the same number. Only the typical range differs: most women wear 5 to 7, most men 8 to 12.

Is your ring size the same as your shoe size?

No. Shoe sizes follow foot length (see the international shoe size conversion chart) and ring sizes follow finger circumference, so any match is coincidence. Measure your finger instead of working from your shoe size.

What are ring sizes in letters?

Letter sizes are the UK and Australian system. From the chart above, a size 6 ring is an L 1/2, a size 7 is an N 1/2, a size 8 is a P 1/2 and a size 9 is an R 1/2. Going the other way, an H is a US 4, a P is a US 7.75 and a W is a US 11.25.

What do European ring sizes like 48 and 52 mean?

European and French sizes track the finger circumference in millimeters. A size 48 falls between a US 4.5 and 4.75, a 52 is closest to a US 6.25 and a 54 is exactly a US 7. The FRANCE column in the chart above lists them against each US size.