How to measure ring size at home
Ring Size Conversion Chart
All of our rings are sized using US standard sizes. Check the table below to see how US sizes correspond to finger circumferences and are converted to international sizes. All of our rings are in the same sizing format.
Inside Circumference (IN) | Inside Circumference (MM) | US, Canada, Mexico | UK, Australia, Ireland, New Zealand, South Africa | France | Germany, Russia, Ukraine, Asia | India, China, Japan, South America, Turkey, Israel | Italy, Spain, Netherlands, Switzerland |
---|---|---|---|---|---|---|---|
1.74 | 44.2 | 3 | F | 44 | 14 | 4 | 4 |
1.77 | 44.8 | 3.25 | F 1/2 | 45 | 14 1/4 | --- | 4 5/8 |
1.79 | 45.5 | 3.5 | G | 45.5 | 14 1/2 | 5 | 5 1/4 |
1.82 | 46.1 | 3.75 | G 1/2 | 46 | 14 3/4 | 6 | 5 7/8 |
1.84 | 46.8 | 4 | H | 47 | 15 | 7 | 6 1/2 |
1.87 | 47.4 | 4.25 | H 1/2 | 47.5 | --- | --- | 7 1/8 |
1.89 | 48 | 4.5 | I | 48 | 15 1/4 | 8 | 7 3/4 |
1.92 | 48.7 | 4.75 | J | 48.5 | 15 1/2 | --- | 8 3/8 |
1.94 | 49.3 | 5 | J 1/2 | 49 | 15 3/4 | 9 | 9 |
1.97 | 50 | 5.25 | K | 50 | 16 | --- | 9 5/8 |
1.99 | 50.6 | 5.5 | K 1/2 | 50.5 | 16 1/4 | 10 | 10 1/4 |
2.02 | 51.2 | 5.75 | L | 51 | --- | 11 | 10 7/8 |
2.04 | 51.9 | 6 | L 1/2 | 52 | 16 1/2 | 12 | 11 1/2 |
2.07 | 52.5 | 6.25 | M | 52.5 | 16 3/4 | --- | 12 1/8 |
2.09 | 53.1 | 6.5 | M 1/2 | 53 | 17 | 13 | 12 3/4 |
2.12 | 53.8 | 6.75 | N | 54 | --- | --- | 13 3/8 |
2.14 | 54.4 | 7 | N 1/2 | 54.5 | 17 1/4 | 14 | 14 |
2.17 | 55.1 | 7.25 | O | 55 | 17 1/2 | --- | 14 5/8 |
2.19 | 55.7 | 7.5 | O 1/2 | 56 | 17 3/4 | 15 | 15 1/4 |
2.22 | 56.3 | 7.75 | P | 56.5 | 18 | --- | 15 7/8 |
2.24 | 57 | 8 | P 1/2 | 57 | --- | 16 | 16 1/2 |
2.27 | 57.6 | 8.25 | Q | 58 | 18 1/4 | --- | 17 1/8 |
2.29 | 58.3 | 8.5 | Q 1/2 | 58.5 | 18 1/2 | 17 | 17 3/4 |
2.32 | 58.9 | 8.75 | R | 59 | 18 3/4 | --- | 18 3/8 |
2.34 | 59.5 | 9 | R 1/2 | 60 | 19 | 18 | 19 |
2.37 | 60.2 | 9.25 | S | 60.5 | 19 1/4 | --- | 19 5/8 |
2.39 | 60.8 | 9.5 | S 1/2 | 61 | 19 1/2 | 19 | 20 1/4 |
2.42 | 61.4 | 9.75 | T | 61.5 | --- | --- | 20 7/8 |
2.44 | 62.1 | 10 | T 1/2 | 62 | 19 3/4 | 20 | 21 1/2 |
2.47 | 62.7 | 10.25 | U | 63 | 20 | 21 | 22 1/8 |
2.49 | 63.4 | 10.5 | U 1/2 | 63.5 | --- | 22 | 22 3/4 |
2.52 | 64 | 10.75 | V | 64 | 20 1/2 | --- | 23 3/8 |
2.54 | 64.6 | 11 | V 1/2 | 65 | 20 3/4 | 23 | 24 |
2.57 | 65.3 | 11.25 | W | 65.5 | --- | --- | 24 5/8 |
2.59 | 65.9 | 11.5 | W 1/2 | 66 | 21 | 24 | 25 1/4 |
2.62 | 66.6 | 11.75 | X | 67 | 21 1/4 | --- | 25 7/8 |
2.65 | 67.2 | 12 | X 1/2 | 67.5 | 21 1/2 | 25 | 26 1/2 |
2.68 | 68.1 | 12.25 | Y | 68 | --- | --- | 27 1/8 |
2.71 | 68.5 | 12.5 | Z | 69 | 21 3/4 | 26 | 27 3/4 |
2.72 | 69.1 | 12.75 | Z 1/2 | 69.5 | --- | --- | 28 3/8 |
2.75 | 69.7 | 13 | --- | 70 | 22 | 27 | 29 |
Make Your Owm Ring Sizer

What You’ll Need:
- A printer and some paper
- String, yarn, dental floss, or a thin strip of paper
- A pen or marker
- A ruler (with millimeters)
How to Measure:
- Cut a piece of string, yarn, floss, or a thin strip of paper that’s at least 3 inches long.
- Wrap one end around the base of the finger you want to size.
- Use a pen or marker to mark the spot where the string overlaps.
- Lay the string flat and measure the distance from the end to your mark using a ruler (in millimeters).
- Find your ring size by matching the measurement to the Ring Size Conversion Chart.
Measure With a Printed Ring Sizer

What You’ll Need:
- A printer and paper
- Scissors
- Ring Size Guide
How to Measure:
- Print the Ring Sizer & Conversion Chart. Make sure your print settings are set to 100% scale (no resizing) and use standard 8.5 x 11-inch paper.
- Cut out the ring sizer and the small slit as shown in the instructions.
- Wrap the paper ring sizer snugly around the base of the finger you want to size, with the numbers facing out. Insert the pointed end through the slit.
- Look at the number that lines up with the slit—that’s your ring size! If the number falls between two sizes, don’t worry—quarter sizes are also an option.
Measure an Existing Ring

What You’ll Need:
- A printer and paper
- Scissors
- A ring that fits the finger you’re measuring
- Ring Size Guide
How to Measure:
- Print the Ring Sizer & Conversion Chart.
Make sure your print settings are set to 100% scale (no resizing) and use standard 8.5 x 11-inch paper. - Pick a Ring That Fits.
Choose a ring that fits the finger you’re measuring comfortably. - Match the Ring to the Size Chart.
Place the ring over the circles on the chart, one at a time, until the inside edge of the ring matches a circle perfectly. - Check for Quarter Sizes.
If your ring falls between two sizes, reach out to us—we can help you order a quarter size for the perfect fit.
Ring Size Tips

Measure the Hand You’ll Wear the Ring On:
Many people have a slightly larger dominant hand, so always measure the hand where you plan to wear the ring.
Band Width Affects Fit:
1.Wider bands feel tighter. For rings with a thick band (over 4mm), go at least half a size larger.
2.For very thin bands (under 1.3mm), consider choosing a slightly smaller size.
3.Ring sizes are measured in millimeters (mm), not inches.
Temperature Matters:
Fingers shrink when cold and swell when warm. Make sure your body temperature is normal before measuring.
Measure at the Right Time:
Finger size can change throughout the day due to hydration and food intake. The best time to measure is midday or evening when your fingers are at their most stable size.
Consider Knuckle Size:
If you have large knuckles, measure both the knuckle and the base of your finger. Choose a size between these two measurements so the ring can slide over your knuckle but still fit comfortably—not too tight, not too loose.
Ring Size FAQ
How Should a Ring Fit?
A properly fitting ring should:
- Slide over your knuckle with minimal friction—it shouldn’t get stuck or require excessive force.
- Sit snugly on your finger without feeling too tight or uncomfortable.
- Offer slight resistance when you take it off, but you shouldn’t have to struggle to remove it.
The goal is a fit that’s secure but comfortable, staying in place without cutting off circulation.
What Is the Average Ring Size for Women?
The average ring size for women typically falls between size 5 and size 7.
However, this can vary widely depending on factors like finger shape, hand size, and knuckle prominence.
For the most accurate fit, it’s always best to measure your finger instead of relying on averages.
What Should I Do If I’m Between Ring Sizes?
If you find yourself between two ring sizes, consider the following:
- For wider bands (over 4mm), go with the larger size since they fit more snugly.
- For thinner bands, the smaller size may feel more secure.
- If you have large knuckles, size up slightly to ensure the ring slides on comfortably.
Please contact us, we can provide custom size service
Does Finger Size Change Throughout the Day?
Yes, finger size can fluctuate during the day due to:
- Temperature changes (fingers swell in the heat and shrink in the cold)
- Physical activity
- Hydration and diet
For the most accurate measurement, it’s best to measure your finger in the afternoon or evening when it’s at its natural, stable size.