Male Chastity Cage Size Guide

Having the correct measurements on your chastity cage is crucial, so we decided to create the Male Chastity Cage Size Guide. Using a cock cage is a wonderful experience and essential to the Sissy lifestyle. We are going to show you how to get the right measurements so that you absolutely love wearing your chastity locks.

It’s important for the cage to fit perfect otherwise it could slip off or restrict circulation if worn too tight. A male chastity cage contains a few components:  the main ring, the tube or cage, and the lock.

Let’s go over how to take measurements so that you feel comfortable buying the right cage.

Main Ring Measurement

Step 1: Take a fabric measuring tape (the type that tailors use) or a string and ruler.

Step 2: Wrap the tape measure or string around your cock, going behind the balls. It should be snug but not tight. The best time to do this is after a shower or bath when your body is at its warmest.

Step 3: Now you have your circumference. Divide by 3.14 to get the diameter. Here are some sample calculations to show you how it works. Take the measurements a few times just to be sure as cock rings cannot be exchanged or refunded after use.


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


Male Chastity Cage Length Measurement

Step 1: Stand upright and ensure that you’re completely flaccid. Take a 30cm/12 inch flat ruler, place it against your pubic bone and lie it flat on top of your penis and measure from the base to tip. Write down the measurement.

Step 2: Subtract 6mm / ¼ inch to 12mm / ½ inch from that measurement to ensure a good fit.


Cage Diameter

Step 1: Cut a length of thick white string and wrap it around your fully flaccid cock at its thickest point. Do this about halfway up the shaft. 

Step 2: Mark the string with a pen and place the length of the string on a ruler to get the circumference.

Step 3: Repeat the process two more times at different points of the day to get the most accurate measurement, then divide the number by 3 to get your average girth.

Step 4: Divide the measurement of your average girth by 3.14 to get your internal cage diameter and make a note of the number when choosing your chastity cage.


There you have it, now you are ready to purchase a male chastity cage that fits perfect and makes you feel great. We like to get ours directly from our friends at OXY. They have been a trusted store for all our sissy toys and devices and we feel comfortable sending our readers there.

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