Smart Chastity Cage Calculator

Chastity Cage Size Calculator


Flaccid Length

Take a ruler and place it on the underside of your flaccid penis, measuring from tip to base. You should be completely flaccid when taking this measurement.


Erect Length

Measure from the tip to the base while fully erect.


Erect Girth

Measure the circumference around your cock from behind the balls using a fabric tape measure or string.


Recommended Cage Size:

Enter your measurements and click “Calculate” to get your ideal cage size.

Recommended Product:

Your product recommendation will appear here.

Finding the right chastity cage size is crucial for comfort, security, and long-term wearability. An ill-fitting cage can lead to discomfort, chafing, and even circulation issues. Whether you are new to male chastity or an experienced user, choosing the perfect fit involves understanding your anatomy and taking precise measurements.

Luckily, tools like the Chastity Cage Size Calculator make this process effortless by providing accurate sizing recommendations tailored to your unique anatomy. This guide covers everything you need to know, including genital anatomy, measurement techniques, device sizing, and expert tips for achieving the best fit.


The Big Fitting Guide: Understanding Your Anatomy

Genital Anatomy & Why It Matters

Before measuring, it’s essential to understand the basic anatomy of male genitals. The two main external structures are:

βœ… The Penis – Primarily composed of soft, erectile tissue and responsible for urination and ejaculation.
βœ… The Scrotum & Testes – The scrotum is a flexible sac that holds the testicles outside the body, ensuring optimal sperm production at 34Β°C (lower than body temperature).

The penis is not just what you see externallyβ€”erectile tissue extends into the body, making precise measurement even more important. Additionally, each testicle is suspended by a spermatic cord, which varies in length, often causing one testicle to hang lower than the other.

Every person’s anatomy is slightly asymmetricalβ€”penile shaft curvature, testicle size, and foreskin coverage vary from person to person. These factors all play a role in choosing a comfortable and secure chastity device.


Key Measurements for a Perfect Fit

When selecting a chastity cage, you need to take multiple measurements to ensure a snug, secure, and comfortable fit. Below are the essential dimensions you should measure.

Primary Measurements

1️⃣ Flaccid Length (Topside) – Measure from the base of your penis to the tip of the glans (foreskin retracted if applicable).
2️⃣ Base Ring Circumference/Diameter – The distance around the base of your genitals, including the scrotum, where the device will sit.

Secondary Measurements

πŸ“ Flaccid Shaft Circumference – Measure around the middle of the flaccid shaft without squeezing.
πŸ“ Erect Shaft Circumference – The same as above, but while erect.
πŸ“ Erect Length – The full length from the base of your penis to the tip while erect.
πŸ“ Total Genital Erect Circumference – The circumference of the entire genital area, including the scrotum, when erect.

Why These Measurements Matter:
βœ” Cage Length – Ensures a proper fit without excessive space.
βœ” Base Ring Size – Prevents discomfort and circulation issues.
βœ” Cage Diameter – Prevents pinching and allows for a secure fit.

Pro Tip: Use the Chastity Cage Size Calculator to input your measurements and get accurate recommendations instantly.


How to Measure Yourself Properly

Tools Needed:

βœ… Soft measuring tape (preferred) OR
βœ… String + Ruler Method – Wrap a string around the area, mark it, then measure against a ruler.

Measuring Tips:

  • Take multiple measurements (morning, afternoon, evening) over a few days to find the smallest size.
  • Measure while completely flaccidβ€”since penis size fluctuates throughout the day, the shortest measurement ensures a secure fit.
  • Don’t pull the tape too tightβ€”a snug, natural measurement is best.
  • Record measurements in millimeters or inches for accurate calculations.

πŸ”Ή Shortcut: Use our calculator at ChastityCageSizeCalculator.com for instant sizing recommendations!


Chastity Device Sizing & Fit Recommendations

Cage Length

πŸ“Œ Rule of Thumb: The tip of your penis should lightly touch the end of the cage when flaccid.

Ideal cage length calculation:
πŸ”Ή (Flaccid length – 10-20%) ensures a snug fit.
πŸ”Ή Too long? Causes excessive movement, discomfort, and rubbing.
πŸ”Ή Too short? Can be restrictive and painful.

Base Ring Size

πŸ“Œ The base ring should be snug but not overly tight.

πŸ”Ή Index Finger Test: You should be able to comfortably slide a finger under the ring.
πŸ”Ή Erection Comfort Rule: The ring should allow some expansion without causing pain or restricted circulation.

πŸ’‘ Pro Tip: If you’re unsure, start with a larger base ring and size down until you find the perfect fit.


Common Fit Issues & Solutions

πŸ”΄ Issue: Pinching & Chafing
βœ… Apply moisturizer or chamois cream around the base ring to prevent irritation.

πŸ”΄ Issue: Nighttime Erections Pulling the Cage Forward
βœ… Try a wider cage to accommodate erections OR a larger base ring for more comfort.

πŸ”΄ Issue: Foreskin Pushing Through Cage Bars
βœ… Consider taping the cage tip or selecting a design with a narrower front opening.

πŸ”΄ Issue: Base Ring Too Tight (Discoloration, Swelling)
βœ… Switch to a larger base ring to ensure proper circulation.

πŸ”΄ Issue: Cage Not Secure
βœ… Reduce the cage gap (distance between base ring and cage) OR opt for a piercing-secured device.


Final Words: Why a Chastity Cage Size Calculator is Essential

Selecting the perfect chastity cage isn’t just about comfortβ€”it’s about safety, long-term wearability, and preventing injury. A well-fitted device should:
βœ… Prevent pinching, chafing, or circulation issues.
βœ… Sit comfortably while allowing natural movement.
βœ… Stay secure while preventing unwanted removal.

Manually calculating your size can be confusing, which is why we highly recommend using the Chastity Cage Size Calculator.

Why Use Our Calculator?

βœ” Instant, Accurate Sizing – No guesswork involved.
βœ” Customized Recommendations – Get cage size & product suggestions.
βœ” Beginner-Friendly – No prior knowledge needed.


Start Your Journey with the Right Fit!

Now that you know how to measure correctly, the next step is finding the perfect cage.

βœ… Use the Chastity Cage Size Calculator today to find your ideal fit instantly!

πŸ”Ή No more trial and error.
πŸ”Ή No more discomfort.
πŸ”Ή Just the perfect chastity device for your needs.

Try it now & find your perfect size in seconds! πŸš€