Cock Ring Sizing Calculator

Enter your penis circumference (in inches) to calculate the recommended ring diameter.

How to Measure for your Cock Ring:

Measuring is the key to finding the right cock ring size. Here’s a simple, straightforward guide to help you get an accurate measurement.

Step 1: Gather Your Supplies. You'll need a piece of string and a ruler to get your measurement. We recommend using a string instead of trying to use a soft tape measure.

Step 2: Measure. Wrap the string around your penis and behind your balls. Mark the string where it meets. You want the string quite snug. You should be able to just fit a finger between your skin and the string when you're soft. And it should be comfortably tight when you're hard so that you can't fit in a finger. You may want to measure both soft and hard to double-check your size.

Step 3: Determine Your Size. Measure the distance from the end of the string to the mark. This is the circumference. Use the handy table below to get your size. To find the diameter, take the circumference and divide by 3.14 to get your diameter.

Tip: Remember, all rings are measured from the inside diameter. Also, Measure twice. We do not accept returns or exchanges on our cockrings.