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How to Find Your CTR Ring Size

Ring Size ChartWhen ordering a CTR Ring or any other LDS ring online, you want to be sure you know your best ring size.  Ideally the best way to get your CTR ring size is by visiting a jeweler.  Many retail stores that have a jewelry counter like Walmart, Target, etc., can usually measure your finger to find the best CTR ring size. However, there are also several in-home methods you can use to find your own CTR ring size. Some of these ring-sizing methods are discussed below and include demos done by yours truly:

Ring Sizing Tips

  • NEVER take your measurement when your hands are cold or damp as your fingers will be at their smallest.  Measure your fingers in warmer temperatures at the end of the day when they are at their largest.
  • When considering a wider band (5mm or greater), move up a half size from your measurement as wider bands tend to fit tighter.
  • Know whether your ring is a comfort fit or not.  Comfort fit bands are rounded on the inside making for a looser fit. 
  • Your ring size will be about half a size larger on your dominant hand (the hand you write with) than on your non-dominant hand.


Ring Sizing Methods

Four different ring sizing methods are discussed below: the Plastic Ring Sizer, the Paper Chart, the Jeweler's Tool, and the String Method.  You can watch each ring sizing tutorial individually, or you can watch them all together with my long, boring video below:


The Plastic Ring Sizer Gauge

To find your ring size using the plastic gauge, you'll need to order one online. Amazon and eBay both have plenty of options for just a few dollars.  

If you can afford to wait a few days, this is a really easy and pretty accurate method for getting your ring size; however, if timing is of the essence, I would recommend either visiting a jewelry counter or printing off our paper ring size chart


The Paper Ring Size Chart

If you're short on time, please print off our paper Ring Size Chart. This chart is great for cutting out a paper ring sizer and also includes a section where you can identify the size of an existing ring.

NOTICE: When you print the chart, PLEASE make sure you're printing it at 100% SCALE or ACTUAL SIZE. Otherwise, the measurements will not be correct. Use a ruler to verify the scale after printing.


Using a Jeweler's Tool

If you happen to have access to a jeweler's tool, here is an example of how to use it to find your ideal ring size. And even if you don't have access to one, I still recommend visiting a local jewelry counter where they will size your finger using the same tool.


The String or Floss Method

The least-preferred method. It can still be useful when comparing the results to other ring-sizing methods; however, by itself, it can be prone to error. Having a friend or family member help you wrap the string around your ring finger is strongly encouraged and will help increase accuracy.

  1. Cut a small piece of non-stretchy string about 6 inches long. Dental Floss works great! 
  2. Measure by wrapping the string snugly around your finger at its widest point (may be your lower knuckle).
  3. Either mark the string at the intersection point or twist it and cut it (see video).
  4. Measure length of string using a ruler with millimeters and use the chart below to identify your size.
  5. Double check and take more than one measurement to ensure accuracy. If you used your lower knuckle as the reference point, please also measure your lower finger where the ring will be sitting and compare the two. If there is any significant difference, it may be better to take the average of the two as your ring size.

String Method Conversion Chart

(length of string in millimeters)
Ring Size               Circumference
(length of string in millimeters)
Ring Size
39.1 1   58.2 8.5
41.6 2   59.5 9
44.2 3   60.8 9.5
46.8 4   62.1 10
48.0 4.5   63.3 10.5
49.3 5   64.6 11
50.6 5.5   65.9 11.5
51.8 6   67.2 12
53.1 6.5   68.4 12.5
54.4 7   69.7 13
55.7 7.5   71.0 13.5
56.9 8   72.3 14