The Ultimate Guide for Selecting a Proper Condom for your Size

3 Easy Steps to Find Your Correct Condom Size


Finding your correct condom size is really easy when you know how. The problem is, most guys are never shown how to do it.

Because of this, Condomsizer.co.uk was born. We can show you exactly how to find the right condom size for your requirements. It's easy, fun, and you'll end up with a condom that you actually enjoy wearing. Yes.. enjoy. And when you enjoy wearing a condom.. wow.. life is fun :-)

You see, most sex-ed classes have a strange idea that condom size isn't important, and that condoms are "one size fits all". Indeed, it's a view that a lot of women share too:

More than 7 independent clinical studies, dating back as far as 1993, have each discovered that 40 45% of men complain regular 'one size fits all' condoms don't fit them correctly! 

And it's not just guys bragging - lots of the men complained that regular condom sizes were too big for them, as well as other men who complained

they were too small.

It's Obvious

When you think about it, what the studies discovered is really obvious.

Men come in all different shapes and sizes - that much is obvious. As a result, they wear different size trousers and shirts.. different sizes of shoe. Even a watch-strap has multiple holes in it because of all the different sizes of wrist it has to fit. Guess what? Men have different sized erections, too.

Now, if you wear a condom size that is too big, it is going to slip, or fall off all together during sex. That's bad.

On the other hand, if you wear a condom size that is too small, it will have to stretch a lot to fit. That stretching will make it feel tight & uncomfortable. Lots of guys report that they can't feel any sensation when having sex wearing a condom - this is caused by a condom being too tight (which is why using a "thin" condom doesn't fix the problem).

So, let's stop talking crazy about condom sizes being "one size fits all"

Keep reading to learn just how easy it is to get the perfect condom size - it takes all of 5 minutes to do, and you won't regret it.

A better fitting condom, feels better. When something feels better, you enjoy wearing it more.

Pretty obvious, right?

The Simple Technique

Ask yourself - how did you find the right size of shoe? You had to measure your feet.

How did you find the right size of shirt? You had to measure your chest, and neck.

So how are you going to find the right condom size? You have to measure your erection!

The more accurate your measurement, the better the fit & feel of your condom. Read on to learn how to get the best measurement possible, and how to convert that into a condom size.

(most people take a second to pause here. Yes, hilarious.. you have to measure your boner. But think about it, and then think about it some more... it's really obvious that to find the condom size, you'll need to measure up first)

How to Measure Up Correctly

There are 2 measurements you need to take, and both are really easy.

Before measuring, make sure to get really hard. Either watch some p0rn while you measure, or maybe get your partner to do it for you?

For both measurements, simply make a mark on a strip of paper like in the diagrams. You can then measure the mark you make using a normal ruler.

1. Length

First, measure the length of your erection. Start at the base, where your pubes are. End at the tip, where your helmet (bell end) is:

2. Circumference

This is also called 'girth'. Most guys measure at the base of their erection, because this is usually the thickest part. But, if you prefer, measure where you feel you are thickest. Or, measure in several places, and use the average. Just wrap the paper around your erection like so:

Read on to learn how to convert your 2 measurements into the correct condom size for your needs.

How to Convert Your Measurements into a Condom Size

Length is Straight Forward

Find a condom length that matches the length of your erection. For example, if you're 150mm long, then get a condom that is 150mm long too.

See, if you choose a condom size that is too short, that's bad, as skin will be exposed and the whole condom could be dragged off during sex:

But if you choose a condom size that is too long, then that's bad too, as the excess latex will bunch up at the base, which can cause tightness, and looks weird:

So get a condom size with length as close as possible to your actual erection length.

Circumference is also easy

Refer to this table, to convert your circumference measurement into something called "nominal width".

What exactly is nominal width? It's probably easier not to worry about that :-). 

Nominal width is a weird condom industry term that 99% of customers have never heard of. But, it's printed on the box - so it means you can choose the right fit, if you know how to.

Measured in inches? Just multiply your measurement by 25 to convert it to millimetres e.g. measured 4.5 inches? 4.5 * 25 = 113mm. Measured 4 inches? 4 x 25 = 100mm.

See, if you choose a nominal width that is too large, the condom will be loose when you wear it. That's bad, because it will slip, or fall off entirely during sex:

But be careful. If you choose a nominal width that's too small, then the condom will be too tight when you wear it. That's just as bad! It's going to feel tight, and uncomfortable. The latex will dig into the flesh of your erection, reducing sensation and ultimately causing you to lose your boner. Did you know, most guys who report "I can't feel anything when wearing a condom" are actually using a nominal width that is too small? It's why "thin" condoms don't fix the problem:

Condom Size Table

Here are the lengths and "nominal widths" of some popular condom brands.

Remember, you are trying to:

1. match your length measurement to the condom length

2. choose "nominal width" based on the previous step 

The closer you match your requirements to the condom size, the better the condom will fit & feel:

The "TheyFit" condoms at the bottom of the table are the world's only custom-fit condom brand. You measure up and they provide you with a condom tailored to your your length and your circumference pretty much exactly.

They have 95 different sizes to choose from, which is fairly insane.

So, is Condom Fit Important?

You bet. Not only does a condom size that fits better feel better, meaning safe sex while using it is better, but a growing body of evidence suggests that better fitting condoms are actually safer too.

When you think about it, that makes sense. If a condom size is too big, and is slipping or sliding around during use (increasing the chance of it falling off entirely) - that's clearly not safe. On the other hand, if a condom size is too small, and it is tight and overly stretched when on the penis, then that stretching is going to put the condom under more stress than if it wasn't. This could increase the chance that the condom breaks, during use.

More scientific investigations are under way to confirm whether or not the intuitive link between condom size (fit) and condom safety, is correct.

Condom Sizes and Country

Bizarrely, depending on which country you are in, might dictate what size of condom you can legally buy.

For example, in the USA, the FDA says that only condoms with a nominal width of 47-57mm are allowed to be sold. Until 2008 it was 50-54mm. But in Europe, you can legally buy condoms with a nominal width of 41-69mm.

Length wise, the FDA says that all condoms in the USA have to be at least 160mm long - in reality, the shortest available condom is 178mm, or 7 inches! But in Europe, they can start from as short as 80mm (about 3 inches).

Some people get around this problem using "mail forwarders". A mail forwarder will receive a package on your behalf, re-label it and send it to another country, for a small fee (less than $5).