Condom Size Calculator

Find Your Size

There are various sizes available, including small, medium, large, and extra-large. If you’re curious about which size is suitable for you but are unsure how to calculate circumference, width, and diameter, fear not! sFun HK has created a custom "Condom Size Calculator" just for you.

How to Calculate Condom Size?

Once you know your girth (circumference), you can use the famous circle formula to calculate your diameter. The most common diameter in Hong Kong is 34mm — let's see if you're in the extra-large category!

Diameter × π* = Circumference = Width × 2
*π (Pi) = 3.1415926539

For example, if your measured circumference is 115mm:
Width: 115 ÷ 2 = 57.5mm
Diameter: 115 ÷ 3.14 ≈ 36.6mm
That means the most suitable size for you is **Large**! From now on, you can proudly tell everyone you need to wear a large-size rubber!

What size should I choose? Fortunately, this information is readily available!

After determining your width and diameter,
you may be eager to discover what size you typically use.
Below are the different size ranges to help you identify whether you fall into the "large" or "extra-large" category.

Size selection ranges:

• Small: Width 44-48mm；Diameter 28-31mm
• Standard: Width 50-54mm；Diameter 32-34mm
• Large: Width 56-58mm；Diameter 36-37mm
• Extra-Large: Width 60-66mm；Diameter 38-37mm

It may be challenging if you're unsure of your size, but fret not!
We will directly assist you in finding your perfect fit.

From standard to extra-large, sFun HK has a comprehensive range for all needs.

When purchasing, it’s essential to choose the right size, as the saying goes: “To excel in one’s craft, one must first have the proper tools.” With ample preparation, your intimate experiences can be exhilarating and fervently satisfying. If you, like the editor, are on the larger side, you can confidently declare: “I am sizable; you may need to take heed.”

We offer a vast selection of rubbers in various sizes to accommodate all preferences! Our website features a diameter ranking, arranged from largest to smallest, to assist you in determining the perfect fit. Click the image below and select your ideal size now!

Understanding width, diameter, and circumference can be quite challenging.

Purchasing a condom is akin to buying clothing—both require an appropriate size.
The packaging typically indicates the dimensions, with width and diameter being the common terms used in Hong Kong.
The illustration demonstrates how to measure both width and diameter of the product.。

Width: Refers to the length when the sheath is laid flat, specifically the measurement of half the distance around the edge of it.

Diameter: Indicates the longest distance between the two ends of the rubber.

Circumference: Represents the total length around the sheath.

You need to determine the size of the sheath, specifically its length and diameter, which can indeed be quite perplexing. However, there's no need for concern; if you know your "circumference" (the length around the circumference of your anatomy), you can use the aforementioned calculator to find your appropriate size. This way, when purchasing rubbers in the future, you will know exactly which size to select.

Simply input your "circumference" in millimeters (mm), and the calculator will promptly provide you with the width and diameter!
For instance, if you input "107mm," you will discover the ideal condom size for you. 

1)Width：53.5mm
2)Diameter：34mm
**Given that rubbers possess a certain elasticity, subtracting 1-2mm will yield your correct size.

Measure Yourself with Precision!

Once you understand what width, diameter, and circumference mean, it’s time to measure your girth and width! Are you ready with a soft measuring tape?
Follow the steps below to discover if you’re a mighty dragon or a mere twig, and next time you shop, you’ll know precisely how to choose the right size!

How wide, long, and thick are you? Measuring the girth and circumference will reveal all

1. JJ requires a complete erection.
2. Use a soft measuring tape or a thin string to wrap around the thickest part of the penis.
3. This measurement is your "girth". Typically, it falls around 100mm.
4. Divide the girth by 2, and you have your "width"!
5. Since rubbers have elasticity, reduce the width by an additional 1-2mm.
6. For reference, the editor states: 65mm.

Have you been wearing the wrong Condom? Whether it's too tight or too loose, you might be risking an unexpected surprise!

You’ve probably experienced the discomfort of a sheath that feels overly tight, or the worry of one that’s too loose. This likely stems from choosing the incorrect Condom size!
Selecting the appropriate Condom size is of utmost importance, as it could determine your future responsibilities as a parent.
Thus, in addition to using a sheath, it’s crucial to select the right one. Allow me to guide you on how to choose the perfect condom size!

sFun HK offers a variety of sizes!

We understand the frustration of finding the right fit—it's truly disheartening to be compelled to use ill-fitting alternatives. That's why we have collected an array of sizes from around the world to ensure a perfect fit for your intimate experiences. No longer will you need to wonder how to choose the appropriate size; whether you are a larger or smaller gentleman, we have options to cater to your needs. Simply click on the image below to discover the size that best suits you!

Common Questions Regarding Size Calculations:

Q: Do I need to measure my size before purchasing a set?

A: Not necessarily. However, some individuals find it challenging to wear standard styles due to fit issues, whether too loose or too tight, hence it is prudent to check if there are any discrepancies with your measurements.

Q: Are Hong Kong residents generally larger or smaller in size?

A: Generally speaking, individuals in Hong Kong tend to fall within the normal size range. Even if you consider yourself on the smaller side, there is no need for embarrassment, as technique plays a crucial role.

Q: After measuring my size, how do I select the appropriate set for myself?

A: You can find the perfect set for yourself in our store, as we offer a range from the smallest width of 44mm to the largest at 66mm, ensuring you will find a size that suits you perfectly.