~ Dave Ruston
Are you averaging the flaccid and erect measurements and then diving by pi or which one are you using to determine the correct inner diameter. Just provide the formula please ?. Maybe I’m just missing something but the verbage seems to be missing part of the equation.
The primary measurement for a cock ring is your erect size. In many situations, it gives good results. However, certain users report somewhat incorrect results with this method. It happens because most people need a cock ring that is a bit smaller than their erect size. This is why there is a recommendation to measure both flaccid and erect sizes, just to be on the safe side. However, chances are that the erect size will be enough for many people.
Since cock rings are such popular adult toys, there are many people doing the measurements and many people getting it wrong. Most of the time, it is not your fault; there is no one, strict formula that would suit everyone. However, there are certain things you can do to increase chances of success.
For a standard cock ring, it is important to measure around the base of the penis.
It is important to take more than one measurement and to calculate the average. This is to prevent any mistakes or incorrect measuring.
A lot of time, finding a perfect fit for a cock ring is a trial and error process so you need to be patient and willing to experiment.
Cock Ring Measurement Formula
Keep in mind that the measurement you get when you wrap the tape around your base of the penis is the circumference. In order to find the best size for a penis ring, you need to get the diameter.
Here is a quick cock ring measurement formula:
C – Circumference of penis
D – Penis diameter
D = C / 3.14
This is a simple formula that will give you the diameter of your penis.
However, this is not necessarily the same thing as the inner diameter of the cock ring you need to buy. You need to pay attention to two important factors:
1) Watch the Measurement Units!
Diameters of penis rings are typically in millimeters. If your measuring tape is in inches, you will need to convert the number you have to millimeters.
Formula for converting inches to millimeters is:
Dm – Diameter of penis in millimeters
Dm = D * 25.4
Or, if you want it straight away, there is an inches to millimeters converter at our cock rings page: Shop Cock Rings & Glans Rings
2) Your Cock Ring Diameter is not Your Penis Diameter
The second mistake people make when measuring for a cock ring is to simply assume that their penis diameter is the cock ring diameter that they need to order. Unfortunately, this is not true; in order for a cock ring to be tight enough, you will need a slightly smaller cock ring diameter than your penis diameter.
There is no one straight formula for calculating “how smaller”. In a way, this is a trial and error process. For most people, an appropriate cock ring is about 5 to 6 millimeters smaller than the diameter of the penis.
Formula for calculating the inner diameter of a cock ring you should order:
Dc – Diameter of the cock ring
Dc = Dm – 5mm
However, keep in mind that this is just an estimate. A lot will depend on your individual anatomy. Some people need cock rings that are 7 or even more millimeters smaller than their penis diameter. Other people need cock rings that are only 3 to 4 millimeters smaller. There is no one hard and fast rule here so try with the common results and see if it works for you.
Always remember: If you order the wrong size of a cock ring, you can simply exchange it for the correct size at TheChainGang.com!
Craig Rutledge is a staff writer for TheChainGang. His main interests include sex toys for men, particularly urethral sounds and ball stretchers. He is also a proud owner of numerous body piercings. He says: “I am happy to contribute with my experience and knowledge about various penis toys and stretching devices. There is still so much unknown about things like urethral sounding, ball stretching or male chastity and it needs to change. I will share my experience and advice in order to help men, young and old, to discover these toys and have the best fun”. In addition to writing, Craig also answers questions and provides handy advice for people learning more about extreme sex toys for men. |