Shopping online for rings very often comes down to which ring size to order. This is a step that requires extra attention as mistakes may result in unnecessary re-sizing and charges. Keep also in mind that some ring types like eternity bands (diamonds all around) as well as inlay rings cannot be resized.
While having a jeweler measure for you is the best option to get an accurate size, there are definitely simple ways to figure out which ring size to order for you or for that special someone you want to surprise. I listed below 5 different methods depending on your how much information you already have.
Method 1: you own a ring that fits the intended finger.
• Print this page at 100% scale.
• Place your ring on top of the circles until the edge
of the INSIDE of your ring matches a circle.
• Your US ring size is written in the center of the circle.
• If you are in between sizes, pick the largest one.
Method 2: measuring with a paper ring sizer
• If you haven't already, print this page at 100% scale.
• Cut out the arrow shaped paper sizer at the bottom of the page and cut also
along the dashed line to create a little slit.
• Insert the arrow end through the slit having the numbers facing out.
• Slide the paper sizer on the finger to be measured and tighten it but
make sure it can also come off your finger over your knuckle.
• Read the size on the center scale.
Method 3: you know your size in a different country
| Inside Diameter in mm |
Circumference in mm |
France Germany Russia Ukraine | Canada Mexico USA |
Australia Ireland New Zealand South Africa UK |
Italy Netherlands Spain Switzerland |
China India Israel Japan South America Turkey |
| 12.5 | 39.1 | 39 | 1 | B | - | 1 |
| 13.3 | 41.7 | 42 | 2 | D | 1.75 | 2 |
| 14.1 | 44.2 | 44 | 3 | F | 4 | 4 |
| 14.5 | 45.5 | 45.5 | 3.5 | G | 5 1/4 | 5 |
| 14.9 | 46.8 | 47 | 4 | H | 6 1/2 | 7 |
| 15.3 | 48 | 48 | 4.5 | I | 7 3/4 | 8 |
| 15.7 | 49.3 | 49 | 5 | J 1/2 | 9 | 9 |
| 16.1 | 50.6 | 50.5 | 5.5 | K 1/2 | 10 1/4 | 10 |
| 16.5 | 51.9 | 52 | 6 | L 1/2 | 11 1/2 | 12 |
| 16.9 | 53.1 | 53 | 6.5 | M 1/2 | 12 3/4 | 13 |
| 17.3 | 54.4 | 54.5 | 7 | N 1/2 | 14 | 14 |
| 17.7 | 55.7 | 56 | 7.5 | O 1/2 | 15 1/4 | 15 |
| 18.1 | 57 | 57 | 8 | P 1/2 | 16 1/2 | 16 |
| 18.6 | 58.3 | 58.5 | 8.5 | Q 1/2 | 17 3/4 | 17 |
| 18.9 | 59.5 | 59.5 | 9 | R 1/2 | 19 | 18 |
| 19.4 | 60.8 | 61 | 9.5 | S 1/2 | 20 1/4 | 19 |
| 19.8 | 62.1 | 62 | 10 | T 1/2 | 21 1/2 | 20 |
| 20.2 | 63.4 | 63.5 | 10.5 | U 1/2 | 22 3/4 | 22 |
| 20.6 | 64.6 | 64.5 | 11 | V 1/2 | 24 | 23 |
| 21.0 | 65.9 | 66 | 11.5 | W 1/2 | 25 1/4 | 24 |
| 21.4 | 67.2 | 67 | 12 | X 1/2 | 26 1/2 | 25 |
| 21.8 | 68.5 | 68.5 | 12.5 | Z | 27 3/4 | 26 |
| 22.2 | 69.7 | 70 | 13 | --- | 29 | 27 |
Method 4: visit your local jewelry store
Your local jeweler is an expert at determining your ring size and will take into account the type of ring width you desire, the size of your knuckles and so much more!
Method 5: order a sizing tool online
• A plastic ring sizer is sturdier than paper, you can easily find one online for about $1.
• Alternatively a ring sizer gauge is the tool used by jewelers, you can find a cheap one for about $10.
Tips: For most accurate results
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Measure at the end of the day rather than in the morning, your finger get a bit bigger during the day.
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Measure at moderate room temperature, fingers get smaller when cold and bigger when warm.
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Don't assume the same finger will have have the same size on both hands. Your primary hand is usually 1/2 size bigger.
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If your knuckle is much bigger than the base of your finger, measure the size at your knuckle, then at the base of your finger and pick a size in between.
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Repeat the measure at least 3 times to be sure you get consistent result.
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If you want to buy a wide band (6mm and up) get one size bigger than the one you measure.