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Ring Size Guide

How to Find Your Ring Size:

Our standard ring size is 7 for women and 10 for men. However, we offer free re-sizing with all orders. Simply select the size you need at the time of ordering and we will take care of the rest. Please note, re-sized rings require an additional business day to ship out.

Free Plastic Ring Sizer in Mail

Trio Ring Sizer Mail

Whether you are looking for a ring for yourself or for your loved one, it is important to find a size that will fit you correctly. To ensure that you order the right size, fill out the form to the right and you will receive a free plastic ring sizer in the mail in 3-5 business days. There is a limit of 1 per customer while supplies last and shipping is only free in the United States.

Ring Sizer Print-out

Trio Ring Sizer Diamond Trio Ring Sizer Rings

If you are looking to order your rings immedietly, and don't want to wait for the free ring sizer to arrive by mail, you may measure your fingers using our ring sizer printout. The print-out is not as accurate as the plastic ring sizer but it will give you a fairly good idea as to what your ring size is.

Click here to view the ring sizer print-out

(Prior to printing, ensure that page scaling is set to "none" on your print dialog box. The document is a PDF file and requires Adobe Acrobat Reader. If you do not have Acrobat Reader download it for free.)


Tips for Measuring Ring Size

The perfect size is when the ring feels comfortable on the finger, but it is a little hard to get off. This allows pleasant wearing without the risk of losing the ring. While you don't want the ring sliding off your finger, you also don't want to it applying too much pressure. What you are looking for is a nice, snug fit. To get a snug fit, the ring should just fit over the largest part of your finger - that is typically your knuckle. And, you should also know that your ring size generally increases with hot outdoor temperatures, with high humidity levels and with a diet high in salt. Your finger is the largest at night time, so it is best to measure your finger then.

Here are some tips if you are planning to surprise your partner:

- Ask your partner's mother or one of her friends if they know her ring size.
- Borrow one of your partner's rings (from the correct finger) and use the Ring Sizer PDF to determine its size.

Ordered Wrong Size?

If you ordered the wrong size, you can send the rings back to us and we can resize the rings for you. Keep in mind, you would be responsible for paying the shipping fees and the resizing charge. For this reason, we strongly recommend that you take advantage of our free resizing offer and be sure about your size before you order.

// International Ring Size Conversion Chart

Buying from abroad? Below is a ring size conversion chart that will help you figure out what ring size to order on MyTrioRings.com!

Diameter (inches) Diameter (mm) US/Canada Standard British, Irish, Australian, Equivalent Japanese Equivalent Swiss
Equivalent
0.458 11.6 0
0.466 11.8 0.25
0.474 12 0.50 A
0.482 12.2 0.75 A 1/2
0.49 12.4 1 B 1
0.498 12.6 1.25 B 1/2
0.506 12.9 1 1/2 C
0.514 13.1 1 3/4 C 1/2
0.522 13.3 2 D 2 1.5
0.53 13.5 2 1/4 D 1/2
0.538 13.7 2 1/2 E 3 2.75
0.546 13.9 2 3/4 E 1/2
0.554 14.1 3 F 4 4
0.562 14.3 3 1/4 F 1/2 5 5.25
0.57 14.5 3 1/2 G
0.578 14.7 3 3/4 G 1/2 6 6.5
0.586 14.9 4 H 7
0.594 15.1 4 1/4 H 1/2 7.75
0.602 15.3 4 1/2 I 8
0.61 15.5 4 3/4 J 9
0.618 15.7 5 J 1/2 9
0.626 15.9 5 1/4 K 10
0.634 16.1 5 1/2 K 1/2 10
0.642 16.3 5 3/4 L 11.75
0.65 16.5 6 L 1/2 11 12.75
0.658 16.7 6 1/4 M 12
0.666 16.9 6 1/2 M 1/2 13 14
0.674 17.1 6 3/4 N
0.682 17.3 7 N 1/2 14 15.25
0.69 17.5 7 1/4 O
0.698 17.7 7 1/2 O 1/2 15 16.5
0.706 17.9 7 3/4 P
0.714 18.1 8 P 1/2 16 17.75
0.722 18.3 8 1/4 Q
0.73 18.5 8 1/2 Q 1/2 17
0.738 18.7 8 3/4 R 19
0.746 18.9 9 R 1/2 18
0.754 19.2 9 1/4 S 20.25
0.762 19.4 9 1/2 S 1/2 19
0.77 19.6 9 3/4 T 21.5
0.778 19.8 10 T 1/2 20
0.786 20 10 1/4 U 21
0.794 20.2 10 1/2 U 1/2 22 22.75
0.802 20.4 10 3/4 V
0.81 20.6 11 V 1/2 23
0.818 20.8 11 1/4 W 25
0.826 21 11 1/2 W 1/2 24
0.834 21.2 11 3/4 X
0.842 21.4 12 X 1/2 25 27.5
0.85 21.6 12 1/4 Y
0.858 21.8 12 1/2 Z 26 28.75
0.866 22 12 3/4 Z 1/2
0.874 22.2 13 27
0.882 22.4 13 1/4 Z1
0.89 22.6 13 1/2
0.898 22.8 13 3/4 Z2
0.906 23 14 Z3
0.914 23.2 14 1/4
0.922 23.4 14 1/2 Z4
0.93 23.6 14 3/4
0.938 23.8 15
0.946 24 15 1/4
0.954 24.2 15 1/2
0.962 24.4 15 3/4
0.97 24.6 16
 
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What Customers Say...

  • I cant even find the words to describe my experience with MTR.this was my first such experience and I must say I am 100% satisfied with this company. the service was above expectations and the helpful friendly staff made it so easy to trust them and so easy to work with...

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    Danielle sparapani

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  • I bought my rings over 6 months ago and still can't believe how great of a deal I got! Mytriorings.com hands down has the best rings and the best prices...

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  • These rings are even more amazing in real life. I can't get enough of them. Fiance loves his own too. I'm happy I found this site.

    Kelechi Ezeagwu

  • This set is beautiful. I normally wear a 6.5 but when I printed out the size chart it said I was a 7.5 I spoke to customer service and the rep said go with the size I normally wear...

    Marlon Doriah

  • My wedding band is beautiful! Excellent quality & a wonderful experience all around with My trio rings. I've recommended them to all my friends & family!

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  • Vipul was has amazing customer service skills. Our rings were beautiful. We've been really happy with it. They also get a lot of attention.

    Debbie Ross

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