Blue Nile Ring size charts

by Egle Goleckyte

Blue Nile is a world leader in selling fine jewelry and diamonds online. Founded in 1999, the Seattle-based company figured out the engagement ring , wedding rings, and diamond business could use a little disruption. As experts in sizing, the size-charts.com team put together a comprehensive Blue Nile Ring Size Chart. How do I know my Blue Nile ring size? What size is a 10 in Blue Nile rings? Are Blue Nile ring sizes accurate? You’ll discover it on the below Page.

Blue Nile itself has also comprehensive tools to get the right info you need.

Blue Nile Ring Sizing Table of Content

Where to buy Blue Nile rings

New Blue Nile Rings

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Ring Sizing Systems

As an online brand Blue Nile rings are offered in many different sizing systems.
We have gathered it from many sources in various countries which allows you to determine your local ring size compared to those from other countries.
The list of countries includes the sizing systems of US & Canada, the United Kingdom & Australia, Germany, France & Russia, Japan, and Switzerland.

Women’s Blue Nile Ring Size

Ring Diameter (mm/Inches)Inside Ring Circumference (mm/Inches)Blue Nile Ring SizeRing SizeFrench Ring SizeUK Ring SizeUS Ring SizeJapanese Ring Size
15.4 mm / 0.60″48.4 mm / 1.9″08XXS48I4 1/27.8
15.7 mm / 0.62″49.3 mm / 1.94″09–49J58.8
16.0 mm / 0.63″50.3 mm / 1.97″10XS50J – K5 1/49.7
16.3 mm / 0.64″51.2 mm / 2.0″11–51K – L5 3/410.7
16.5 mm / 0.65″51.8 mm / 2.04″12–52L611.7
16.9 mm / 0.66″53.2 mm / 2.1″13S53M – N6 1/212.6
17.1 mm / 0.67″53.8 mm / 2.12″14–54N – O6 3/413.6
17.5 mm / 0.69″54.8 mm / 2.16″15–55O – P7 1/414.6
17.8 mm / 0.7″56.5 mm / 2.22″16M56P7 1/215.5
18.2 mm / 0.72″57.2 mm / 2.25″17–57Q816.4
18.5 mm / 0.73″58.2 mm / 2.29″18–58Q – R8 1/417.4
18.8 mm / 0.74″59.0 mm / 2.33″19L59R8 3/418.3
19.1 mm / 0.75″60.0 mm / 2.36″20–60S919.3
19.4 mm / 0.76″61.0 mm / 2.4″21–61S – T9 1/220.3
19.8 mm / 0.78″62.3 mm / 2.45″22–62T – U1021.2
20.0 mm / 0.79″62.9 mm / 2.48″23XL63U – V10 1/422.2
The most complete Blue Nile Ring Women’s Size Chart by size-charts.com

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Men’s Blue Nile Ring Sizes Chart

Ring Diameter (mm/Inches)Inside Ring Circumference (mm/Inches)Blue Nile Ring SizeRing SizeFrench Ring SizeUK Ring SizeUS Ring SizeJapanese Ring Size
16.9 mm / 0.66″53.2 mm / 2.1″13S53M – N6 1/212.6
17.1 mm / 0.67″53.8 mm / 2.12″14–54N – O6 3/413.6
17.5 mm / 0.69″54.8 mm / 2.16″15–55O – P7 1/414.6
17.8 mm / 0.7″56.5 mm / 2.22″16M56P7 1/215.5
18.2 mm / 0.72″57.2 mm / 2.25″17–57Q816.4
18.5 mm / 0.73″58.2 mm / 2.29″18–58Q – R8 1/417.4
18.8 mm / 0.74″59.0 mm / 2.33″19L59R8 3/418.3
19.1 mm / 0.75″60.0 mm / 2.36″20–60S919.3
19.4 mm / 0.76″61.0 mm / 2.4″21–61S – T9 1/220.3
19.8 mm / 0.78″62.3 mm / 2.45″22–62T – U1021.2
20.0 mm / 0.79″62.9 mm / 2.48″23XL63U – V10 1/422.2
20.4 mm / 0.8″64.2 mm / 2.53″24–64V10 3/423.1
20.7 mm / 0.81″65.0 mm / 2.56″25–65W1124.1
21.1 mm / 0.83″66.2 mm / 2.61″26XXL66X11 1/225.0
21.3 mm / 0.84″67.0 mm / 2.63″27–67X – Y11 3/426.0
The most complete Blue Nile Ring Men’s Size Chart by size-charts.com

Where to buy Blue Nile rings

New Blue Nile Rings

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The impact of the Ring Profile and Ring Width

Cartier offers an extensive choice in many rings and in different widths. The profile shape and width have a major influence on the size of the ring. Time to highlight this as well in Blue Nile Ring Size Chart.

Rings that have a convex profile on the inside slide much easier on the finger than rings that are straight on the inside.

Ring Width Size Chart and conversion guide

Blue Nile Rings for men and women come in many widths.
Below is a chart that shows common ring widths in millimeters converted to inches.
If you have a ruler close to you, it is easy to visualize how wide the ring you are about to order will be. Width in rings does matter for comfort and wearing of the ring: Narrow rings are easier to put on and take off than wide rings.

Blue Nile Ring Band Size Chart Converting millimeters to inches

Conversion Ring Width MMConversion Ring Width Inches
mminches
2 mm0.07″
4 mm0.15″
6 mm0.23″
8 mm0.31″
10 mm0.39″
12 mm0.47″
14 mm0.55″
16 mm0.62″
18 mm0.70″
20 mm0.78″
mm to inches ring width size conversion table

If you don’t happen to have a ruler nearby, you can use something simple like a coin that is round and simulates the width of a ring. Like a 5¢ US nickel. The thickness of a nickel is 2 mm thick.

FINE Ring Width
Fine rings are 2-3 mm wide.
NARROW Width
Narrow rings are 5-7mm wide.
WIDE Ring Width
Wide rings are 8-10mm wide. Most used for larger hands.

How do I measure my Blue Nile ring size I need?

You have found the Blue Nile Ring you want, and you would like to buy it.
How do you know if the ring fits properly? In the below “how to measure your ring?” section you will find some easy ways how to determine your Blue Nile ring size.

Below you will find three common ways to measure your ring size right at home.
Ring sizes are displayed in different ways. In the above ring size charts we have added both Inner Diameter as Ring Circumference in millimeters and inches which you can convert to the size. Other brands choose to use the inner circumference as the size. Sometimes the American ring size is also used. It’s not difficult in itself, but a bit confusing every now and then. We almost always use the inner diameter, because it is the easiest to determine yourself.

Time needed: 2 minutes

Determining your ring size can be done in a number of easy ways. Let’s look into some ways

  1. Ring size and temperature: Take ring measurement of your fingers on different times of the day

    If you are going to measure your ring size, you have to take into account one important detail: your fingers expand with heat.
    This can happen on hot days in the summer, but also in a warm room.
    It is advisable to measure your ring size at different times of the day. For example, do this in the morning, afternoon, and evening. Then take the average of all measurement moments to find the ideal size for your Cartier ring.

  2. Measure the diameter with a ring

    The easiest way to determine a ring size is on the basis of a ring that fits you well and is comfortable. This way is also useful if, for example, you want to surprise someone with a ring and you do not want to ask them about their size. You can then easily ‘borrow’ a ring to measure.
    Measure ring size with a ruler
    Take the matching ring and place it centered on the measurement units of a ruler. Place the inside of the ring at 0 cm and read the number of millimeters on the other inside. This is the inner diameter ring size. We use the diameter ring size the most. You can look up in the table which circumference ring size belongs to that.

  3. Measure the circumference without the ring

    If a suitable ring is not available, it is best to estimate the diameter of the ring by using a ribbon or string.
    Measure ring size with a ribbon or string
    Loosely wrap the ribbon or string around the finger on which the ring will be worn and cut it where the ribbon meets. Measure the piece that remains with a ruler in millimeters. The length of the ribbon is the circumference of your finger and therefore the circumference ring size you need. You can easily look up the diameter ring size in the table above.
    Measure the ring size with paper, scissors and pencil
    You can also cut a strip of paper to wrap around your finger for this method. You can then simply mark the size with a pencil or pen. Measure the length along a ruler. You measure the circumference ring size that you need.
    Measure the ring size with a paper strip and pencil

  4. Use a tape measure

    This is not a very accurate method, but it is easy and fast. The advantage is that a measuring tape is nice and wide, so you measure over a somewhat larger part of the finger. Proceed as follows: Wrap the measuring tape around the finger and read the number of millimeters where the tape meets again. The length you now have is the inner circumference of the ring. You now know the circumference ring size of the finger. You can look up the diameter of the ring size in the table above.

  5. Consider your knuckle Size.

    when you have large knuckles, you should order half a size bigger than what your finger ring size measurement alone shows, otherwise it will be very unlikely you can slide your ring into the right place.

  6. Use a Caliper of go to a jeweler

  7. Check your Blue Nile Ring measurements in the above Ring Size Charts

Convert Ring size Diameter and Ring Size Circumference into US Ring sizes

You will find a size chart below to find the ring size. On the left is a list of diameters in millimeters. If you know the diameter, you can look up the corresponding circumference size to the right of it. In the middle you will find the circumference size in millimeters. If you know the circumference size of the finger, you can look up the diameter size to the left of it.

Diameter ring size (mm)Circumference ring size (mm)US ring size
15484.5
15.5495
16505.5
16.2551 
16.5526
17536.5
17.25547
17.5557.5
18568
18.2557 
18.5588.5
19599
19.2560 
19.5619.5
19.756210
206310.5
20.2564 
20.56511
216611.5
21.56812
226913
Ring Diameter and Ring Circumference to US Ring Size Converter

You can easily convert your ring size using this table. For example, if you know your US size or UK size, or you know the diameter of your ring size, you can read in the table which ring size you should choose in shopping for your ring, wedding ring, engagement ring, etc…

When converting your ring size, the same applies to measuring the ring size: if you do not arrive at a standard size as indicated in the ring size table, then choose the nearest (larger) size.

Blue Nile Ring Size frequently asked Questions

How do you calculate your Cartier ring size?

A Simple way is to wrap measuring tape around the finger and read the number of millimeters / inches where the tape meets again. The length you now have is the inner circumference of the ring. You now know the circumference ring size of the finger. You can look up the diameter of the ring size in the table above and convert it to the correct international ring size standard

Is your Blue Nile ring size the same as your shoe size?

There’s this rule of thumb about the relation between US shoe size and US ring size. However, it’s not confirmed by chart you can divide the shoe size by 2 and add 3. But again this is an indication and many factors depend on your body shape. Weight or stature doesn’t say anything about the ring size, the ring size only depends on the shape, length, and thickness of your fingers! Use the size charts to get the correct Blue Nile Ring Size

Are there different types of ring sizes?

While choosing a ring, you may come across different sizes. In some cases, the size is indicated by the inner diameter of the ring. That means the distance between the insides of the ring. Then there is also the circumference of the ring. These two sizes are simply indicated in millimeters or inches. From that Ring dimension, you can convert to the international ring sizes like US size, EU size, UK size of rings in the above ring size charts.

Is there a difference between men and women’s Blue Nile ring sizes?

It is sometimes thought that men and women have different ring sizes, but that is not true. Most men’s rings are made in larger sizes, as men often have wider hands and fingers. So if you are going to measure a men’s ring or do you need a women’s ring, you just use the same method to determine the size.

What’s the average Blue Nile ring size for women?

The average Blue NIle ring size woman is around ring size 17 EU , Size N in UK and Size 6.5 US. A useful list below finding the average women’s ring size:
1. Ring Diameter: 17mm / 0,66″
2. Ring Circumference: 53mm / 2.1″
3. US/Canada Ring Size: 6.5
4. UK/Australian Ring Size: N
5. French/Russian Ring Size: 54
6. German Ring Size: 17
7. Japanese Ring Size: 13
8. Swiss Ring Size: 15.25 (15 1/4)

Weight or stature doesn’t say anything about the ring size, the ring size only depends on the shape, length, and thickness of your fingers!

What’s the average Blue Nile ring size for men?

The average man has ring size 21 EU, Size Y in UK and US Size 12. A useful list below finding the average Men’s ring size:
1. Ring Diameter: 21,4mm / 0,84″
2. Ring Circumference: 67mm / 2.6″
3. US/Canada Ring Size: 12
4. UK/Australian Ring Size: Y
5. French/Russian Ring Size: 67.5
6. German Ring Size: 21
7. Japanese Ring Size: 25
8. Swiss Ring Size: 27.5 (27 1/2)

Weight or stature doesn’t say anything about the ring size, the ring size only depends on the shape, length, and thickness of your fingers!

When is the best time to measure ring size?

If you are going to measure your ring size, you have to take into account one important detail: your fingers expand with heat. This can happen on hot days in the summer, but also in a warm room. That is why it is advisable to measure your ring size at different times of the day. For example, do this in the morning, afternoon and evening. Then take the average of all measurement moments to find the ideal size for your ring.

Which hand do you wear the ring on?

As this can vary per country, we provide you with a summary below:
In Germany and Austria, the wedding ring is worn on the right, the “righteous” hand. Internationally, the wedding ring is worn on the left hand, closest to the heart.
The engagement ring is usually worn on the left hand. There is a clear international trend to combine engagement ring and wedding ring on one finger.
If you wear your ring as a jewel or a friendship ring, you are free to choose any finger

How wide is a 8mm ring?

An 8mm ring is as about the width of four coins (5ct Nickle) stacked together. A standard US uses nickle measures 1/16 of an inch, which is almost 2mm wide. Four nickles, or 8mm, would measure 1/4 inch. Check the full ring width conversion table here

What is the best Ring Width size for a man?

The most common ring width for men is about 8mm or 0.25″ wide.
Men with larger finger sizes prefer wider rings. A majority of men that have a finger size under 9.0 choose a 6 mm wide ring. Men with finger sizes above 9.0 tend to prefer an 8 mm wide ring, or even a 10 mm wide ring. The width of the ring is a personal choice and size doesn’t really influence fitting or comfort. Men wearing a wedding ring for the first time or are not used to wearing a ring go for a 4mm or 0.12″ sized ring.

What is the most common women’s ring width?

The most common ring width for women is 4 mm or 0.12″.
Women with smaller finger sizes, under size 6.0 choose a small 2 mm wide wedding or engagement ring. The trend is to go more to wider rings so many rings only start from 6 mm or wider, and it is common for women to use a 6 mm ring. Like it does for men’s ring width choice it’s a personal preference.

The complete Blue Nile Ring Size Guide

A full ring sizing and dimension chart with measurements in Centimeters and Inches. For all ring sizes you can find the ring size conversion in the below table.

Ring Diameter (mm/Inches)Inside Ring Circumference (mm/Inches)Blue Nile
Ring Size		Ring SizeFrench Ring SizeUK Ring SizeUS Ring SizeJapanese Ring Size
12.5 mm / 0.5″39.5 mm / 1.6″01–41B1 3/41.2
13.2 mm / 0.52″41.4 mm / 1.65″02–42D2 1/42.1
13.6 mm / 0.54″42.8 mm / 1.7″03–43E – F2 1/23.1
14.0 mm / 0.55″44.1 mm / 1.74″04–44F34.0
14.2 mm / 0.56″44.8 mm / 1.76″05–45F – G3 1/45.0
14.6 mm / 0.58″46.0 mm / 1.8″06–46G3 3/45.9
14.8 mm / 0.59″46.7 mm / 1.84″07–47H46.9
15.4 mm / 0.60″48.4 mm / 1.9″08XXS48I4 1/27.8
15.7 mm / 0.62″49.3 mm / 1.94″09–49J58.8
16.0 mm / 0.63″50.3 mm / 1.97″10XS50J – K5 1/49.7
16.3 mm / 0.64″51.2 mm / 2.0″11–51K – L5 3/410.7
16.5 mm / 0.65″51.8 mm / 2.04″12–52L611.7
16.9 mm / 0.66″53.2 mm / 2.1″13S53M – N6 1/212.6
17.1 mm / 0.67″53.8 mm / 2.12″14–54N – O6 3/413.6
17.5 mm / 0.69″54.8 mm / 2.16″15–55O – P7 1/414.6
17.8 mm / 0.7″56.5 mm / 2.22″16M56P7 1/215.5
18.2 mm / 0.72″57.2 mm / 2.25″17–57Q816.4
18.5 mm / 0.73″58.2 mm / 2.29″18–58Q – R8 1/417.4
18.8 mm / 0.74″59.0 mm / 2.33″19L59R8 3/418.3
19.1 mm / 0.75″60.0 mm / 2.36″20–60S919.3
19.4 mm / 0.76″61.0 mm / 2.4″21–61S – T9 1/220.3
19.8 mm / 0.78″62.3 mm / 2.45″22–62T – U1021.2
20.0 mm / 0.79″62.9 mm / 2.48″23XL63U – V10 1/422.2
20.4 mm / 0.8″64.2 mm / 2.53″24–64V10 3/423.1
20.7 mm / 0.81″65.0 mm / 2.56″25–65W1124.1
21.1 mm / 0.83″66.2 mm / 2.61″26XXL66X11 1/225.0
21.3 mm / 0.84″67.0 mm / 2.63″27–67X – Y11 3/426.0
The most complete Blue Nile Ring Size Chart by size-charts.com

About Ring Sizes

Our main focus is to provide you correct info about rings and the different size all over the world at size-charts.com.
We make it easy to find out your size. This page provides you a clear International Ring Size Chart with dimensions for determining your finger and ring size, which will help you buy it online or offline.

More and more consumers purchase goods through online shopping.
There is a requirement to ensure that potentially expensive purchases like rings are made properly right from the start.

At size-charts.com : Size does matter.

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