How to Measure Your Chastity Size

There are a variety of different chastity style devices on the market, and since everyone has differing penis shapes and sizes and comfort levels it is important to give careful consideration to any form of chastity device before purchasing. In this article we will go through how to measure yourself for a chastity device, materials, and cleaning and after care of chastity devices. If you’re unsure about chastity devices, or if you’re considering chastity toys and not sure where to start, hopefully by the conclusion of this article you’ll be better placed and more informed in making a decision.

A chastity device consists of two parts. A cock ring which sits at the base of the cage and goes around the base of the shaft behind the balls, and the ‘cage’ which will hold the shaft and is connected to the cock ring by a pin/lock. The first thing that you will need to consider when purchasing a chastity device is to ensure that you get the correct size. Unfortunately, if you get the wrong size chastity device, it is unlikely that you will be able to return it. A cock ring which is too large will mean that the device will eventually fall off or place too much pressure against the testicles, too tight and it can cause health issues. Ensuring that you get the correct sizing is important. The cock ring is generally measured by diameter, and you’re going to need to know your diameter size before you embark on a lifestyle of chastity and orgasm denial. To accurately measure the base of your penis you’ll need a piece of string, a ruler and a calculator.

  1. When erect, wrap the string around the very base of the penis behind the balls, marking where the string meets. Ensure that it is wrapped snugly, but not tightly. This will give you your circumference measurement.
  2. Measure the length of this string and divide the result by 3.14 recording the results.

We recommend doing this several times at different times of the day to ensure accurate results.  For example: You measure the circumference of the base of your penis at 7 inches.   7 ÷ 3.14 = 2.22. You will need a chastity cage with a cock ring diameter around this measurement. We’ve compiled a table for you to average out the results with both Metric and imperial measurements.

  • 17.3 cm ÷ 3.14 = 55mm diameter
  • 15.7 cm ÷ 3.14 = 50mm diameter
  • 14.1 cm ÷ 3.14 = 45mm diameter
  • 12.5 cm ÷ 3.14 = 40mm diameter
  • 7 inches ÷ 3.14 = 2.25 inches diameter
  • 6.25 inches ÷ 3.14 = 2 inches diameter
  • 5.5 inches ÷ 3.14 = 1.75 inches diameter
  • 4.7 inches ÷ 3.14 = 1.5 inches diameter

The second measurement you’ll need to measure the shaft of your penis – this is especially important if you have a large shaft when flaccid. You can do this by repeating the above steps (when flaccid) and determining the diameter of the cage that you need. If the base of your shaft is not the thickest point of your penis, then you should measure at the thickest point of the shaft. Selecting a cage that has a diameter smaller than this number will ensure a snug, but not constricting, fit.

Once you have these two measurements, you’re going to be well placed to successfully purchase a cock cage that fits. Over time, and as you become more accustomed to wearing chastity cages, you might find that you want an even snugger fit. Using the measurements above you can also determine that, or on your next purchase select a cock cage with smaller measurements than your previous cage. It is important to note that some cock cages will have a little stretch (Leather and silicone) in them, and others will not (Steel and Plastic).

Kinklab 5 Gates of Hell Photo
Sex Toy: Kinklab 5 Gates of Hell

What we generally recommend before embarking on a lifestyle of chastity and sexual denial, is to try a variant of the Gates of Hell. Technically, it’s not considered to be a chastity device at all, but this is what makes it a unique entry into the beginners list. The harness itself is a leather strap which is connected to a series of rings which will hold your shaft in place. Gates of Hell’s will generally have five rings, though there are some with more and some with less rings. The biggest of these rings will sit behind your cock and balls and will be what holds the device in place. The rings will give you a similar sensation as to being enclosed within a restrictive device, and this is an extremely inexpensive way to explore the physical sensations of chastity in order to determine if you’re interested in it. If the idea of metal rings makes you uneasy (maybe you need to rethink chastity), but you could work your way to metal rings by obtaining a gates of hell harness with rubber rings instead.

Gates of Hell are a fantastic way to be introduced to the idea without restricting you in any serious way. It could be a useful tool for a mistress/dominant to give to their sub as a teaser or intro way into chastity, or it could be a purchase of your own choice to determine if it’s something that you’d like to bring up with your sexual partner. Either way that you’re looking at it, it’s a fantastic beginners tool to utilize.




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