How To Measure Your Ring Size

To help you find your ring size, please view our ring size chart, request a free ring sizer, and tips for measuring at home.
Before you begin taking your measurements, pick the finger on which you want to wear your ring. The fingers on your dominant hand tend to be larger than those on your non-dominant hand, so keep that in mind when measuring for your ring size. These standard ring sizes can help guide you in the right direction. If you do not see the size you need, contact our experts for help placing a special order. There are also a number of at-home methods to find your ring size.

Request a Free Ring Sizer

We are happy to send you a complimentary ring sizer so that you can easily measure your ring size at home. You can make an order of the ring sizer for 0 cost.

Please note: ring sizers can only be shipped to addresses within the United States and Canada.

REQUEST RING SIZER

Find Your Ring Size With Our Ring Sizing Guide

This is a chart that will be extremely helpful for you to determine the ring size that you need. You can either make use of a tape or a small piece of string to measure the area that will be occupied by the ring. When it becomes a complete circle, make a mark on such string. All MSBLUE rings are specified in standard US sizes. View the conversion chart to see how US sizes map to finger circumference, as well as how US sizes convert to Canada, Australia, UK and other countries.

Inside Diameter (mm)	Inside Circumference (mm)	US, Canada	UK, Australia, South Africa	France	Germany	Japan, South America	Italy, Spain
14.1	44.2	3	F	44	14	4	4.5
14.5	45.5	3.5	G	46	14.5	5	5.25
14.9	46.8	4	H	47	15	7	6.5
15.3	48	4.5	I	48	15.5	8	7.75
15.7	49.3	5	J-½	50	14.75	9	9
16.1	50.6	5.5	K-½	51	16.25	10	10.25
16.5	51.9	6	L-½	52	16.5	12	11.5
16.9	53.1	6.5	M-½	53	17	13	12.75
17.3	54.4	7	N-½	54	17.25	14	14
17.7	55.7	7.5	O-½	56	17.75	15	15.25
18.1	57	8	P-½	57	18	16	16.5
18.5	58.3	8.5	Q-½	58	18.5	17	17.75
19	59.5	9	R-½	59	19	18	19
19.4	60.8	9.5	S-½	61	19.5	19	20.25
19.8	62.1	10	T-½	62	20	20	21.25
20.2	63.4	10.5	U-½	63	20.5	22	22.75
20.6	64.6	11	V-½	64	20.75	23	24
21	65.9	11.5	W-½	66	21	24	25.25
21.4	67.2	12	X-½	67	21.25	25	26.5
21.8	68.5	12.5	Z	68	21.75	26	27.75
22.2	69.7	13	Z+1	70	22	27	29

See our printable sizing guide to make finding the right size an easy process for your band or ring. See our expert gemologist advice for more on finger sizing while keeping your surprise.

PRINT SIZING GUIDE

Ring Size Tips：
1) Our dominant hands are generally slightly larger — make sure you measure the right finger on the correct hand!
2) Make sure the finger is at normal body temperature — fingers can shrink or expand when hot or cold.
3) If your knuckle is a lot larger than the base of your finger, measure both the base of your finger and your knuckle and select a size between the two.

Bracelet Length (inches)	5"	5.5"	6"	6.5"	7"	7.5"	8"	8.5"	9"
Bracelet Length (cm)	12.7 cm	13.97 cm	15.24 cm	16.51 cm	17.78 cm	19.05 cm	20.32 cm	21.59 cm	22.86 cm

Length (Inches)	Length (cm)
14”	35.56 cm
16”	40.64 cm
18”	45.72 cm
20”	50.8 cm
22”	55.88 cm
24”	60.96 cm
30”	76.2 cm
36”	91.44 cm

Free Ring Resizing

If you order a ring and love it, but didn’t quite get the ring size right, don’t worry! We are happy to resize your ring one time for FREE within 30 days after purchase. It’s simple: Ship the ring to us and we’ll ship it back. If we determine that we are unable to size the ring up or down to the new size, we will inform you and give you an option to either place a special order for the size required or have it shipped back to you as it is.

LEARN MORE

FAQs - Frequently Asked Questions

Q: What should I do if my finger size falls between two ring sizes?

If your measurement falls between two sizes, we recommend choosing the larger size for a more comfortable fit.

Q: When is the best time to measure my ring size?

The best time to measure your ring size is at the end of the day when your fingers are largest. Also, ensure your fingers are warm, as cold weather can shrink them by up to half a size.

Q: How should a properly fitting ring feel on my finger?

A properly fitting ring should slide comfortably over your knuckle and be snug enough not to fall off, yet loose enough to be worn without discomfort.

Q: Can I measure my ring size multiple times to ensure accuracy?

Yes, it’s recommended to measure your finger size multiple times to ensure accuracy, especially if your fingers tend to change size due to temperature or time of day.

Q: How do I find out my partner's ring size without them knowing?

You can ask one of their friends or family members for help, but make sure they keep it a secret!

Q: What is the average engagement ring size?

The average engagement ring size for women is typically between size 5 and size 7. However, this can vary depending on finger size, personal preference, and style of the ring.

Q: How do I choose an engagement ring?

Choosing an engagement ring involves considering your partner's style, the type of metal, the shape and size of the stone, and the overall design of the ring. It’s also essential to determine your budget and whether your partner prefers a classic or unique style. Our engagement ring buying guide provides detailed steps to help you make the perfect choice.