Dildo Sizes: How To Figure Out The Best Size For You

Most Popular dildo sizes that most women prefer are actually the average penis size – 5.1 to 5.6 inches in length and 4.6 to 4.8 inches in circumference. It’s always a safe bet to start average and then go from there.

If you’re new to the sex toy world, you might be absolutely clueless about choosing the right dildo for you.

They might look a bit intimidating for first-time users, but dildos are great sex toys to have in your collection.

Sometimes you might want a quicky with your bullet vibrator, but for those days when you want to feel the fullness of a penis deep inside you, then a good dildo is a way to go.

Now, if you’ve been watching porn, you might think that you need to get the biggest dildo you can find, but it’s really not the case. 

Before you can choose the right size of a dildo, it’s important that you understand dildo sizing first. 

So, let’s start with that: 

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Dildo Size Comparison

So, first of all, there are two things you need to measure when choosing a dildo: 

#1: Length

When it comes to length, there is the length of the dildo itself, and then there is the insertable length, which will be the important measure here. 

So, when you’re looking at the dildo you like, always make sure you get these two measurements right. 

Just because the website states that it’s 10″ doesn’t mean that it’s the size of the insertable length!

Now, if you’re not sure how to judge the length of the dildo just by having the numbers, we have a great image that will allow you to understand sizing a bit better:

Having the dildo compared with the can of soda is the best visual, and you can easily imagine the size. 

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#2: Width / Girth

The next measure you’ll need to pay attention to is the girth of the dildo. 

Usually, the girth of the dildo is listed as the width of the shaft (diameter) or circumference around the shaft.

Here is the table that will help you understand the measurements a bit better:

DIAMETER

1”

1.25”

1.5”

1.75”

2”

2.5”

3”

CIRCUMFERENCE

3” – 3.5”

3.75” – 4”

4.5” – 4.75”

5” – 5.5”

5.5” – 6.75”

7” – 7.75”

8” – 8.5”

When you are choosing the girth of the dildo, you should know that, on average, the longer the dildo, the thicker it’s going to be. 

Now, the majority of dildos have a width (diameter) between 1″ and 2,” and the average penis girth is around 1.5″.

Some sex educators believe that girth is the most important part of choosing the correct size of a dildo and not the length. 

You should pay attention to the girth and see which you prefer in real life.

One thing to keep in mind:

If you don’t have experience with penetration, it might be a good idea to go even smaller. 

I would suggest going for a dildo that has a girth of less than 1″ diameter and then sizes up if you feel like you want a fuller feeling. 

Also, talking about sizing up – go for 0.25” increments in girth; this way, you will ensure you can take the dildo in with comfort.

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What Is The Average Dildo Size?

Based on market purchases, the average dildo size is 7.5” in length and 4.65” in circumference (girth). In other words, most people prefer dildos with slightly larger dimensions than the average penis.

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Dildo Size Chart

Here is an approximate dildo size chart to help you better understand the sizing:

LENGTH

6”

7”

8”

9”

10”

11” – 12”

GIRTH

4.5” – 4.75”

4.5” – 4.75”

5” – 5.5”

5.5” – 6.75”

7”

7” – 7.75”

For the best results, you have to always check the manufacturer’s size chart or the website that you’re buying from. 

While you can expect the dildo girth to go up in size linearly with the girth of it, it all depends on each seller individually. 

Most of the websites that sell dildos have sizing information with each individual toy, so it shouldn’t be an issue, really.

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How To Decide The Best Dildo Size For You?

Now that we discussed the most important measures, let’s get into the tips for choosing the right dildo size for you.

#1: Measuring The Length

Most women prefer the average penis size dildo, which is around 5″-6″ in length and 1.5″ girth in diameter.

I recommend starting out on the safe side and going for the average size if you’re unsure what you prefer. 

Once you get comfortable with the average length, you can see what works for you better:

Maybe you’ll want to go smaller and get a dildo designed to target the G-spot.

Or maybe you’ll want to go bigger and have that fullness feeling while using it. 

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#2: Measuring The Girth

When it comes to measuring the girth when choosing the dildo size, I recommend using your fingers. 

See how many fingers you like to insert inside yourself and what feels the best. 

Then measure the circumference of your fingers and see what girth is that when you buy a dildo. 

This is the easiest method, and you’re in full control of what you choose. 

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#3: Watch And Read Reviews Before Buying

You know when you buy a pair of jeans in American Eagle, and they fit perfectly, but when you get a pair from HM in the same size, they run a bit small? 

Well, the same goes with sizing for dildos as well.

Each brand’s sizing can vary, so you need to keep in mind that the dildo you choose might be bigger or smaller. You also need to consider the feel of the dildo and how firm it is. There are many options, like dual-density dildos and soft, flexible designs.

Now, the best way to go about this issue is to watch and read sex toy reviews. 

There are plenty of great sex educators online who do reviews of various sex toys, and you can easily find information on the dildo you’re interested in buying. 

Check their reviews and see what they say about the size and whether it’s true to size or whether you should order bigger or smaller. 

This will save you time and having to deal with returns. 

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#4: What Is The Perfect Dildo Size?

Now, you might still be waiting for me to tell you the perfect size for a dildo and make this whole process easier for you. 

But I can’t do that as, in reality, the perfect dildo size is the one that you enjoy the most.

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Different Dildo Sizes For Different Dildo Types

Anal Dildos

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The openings between the vagina and anus are very much different. The vagina is much more flexible. Meanwhile, the anus is smaller and tighter in comparison. 

You could use your fingers to see which size you are more comfortable with. Go on all fours and try to insert them in. Or, you could have your partner help you out. 

For beginners, the rule of thumb is to go with a width of around 1”-1.25”.

Interested in learning more about Anal Dildos? Read our in-depth review here,  or check out these best prostate dildos.

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Double Sided Dildos

Double-sided dildos have two types: (1) double-ended and (2) deep-penetration double dildos. 

Both have a range of 6” in length for the vaginal shaft. Meanwhile, the anal member ranges up to 5”.

The deep-penetration variant has an approximate circumference of 4”-6” for the vaginal end, while the anus shaft ranges from 3”-4”.

Double-ended dildos, on the other hand, have an approximate 4”-6” in circumference for both members. 

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Glass Dildos

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Glass dildos are compact. So, best to have the right size to get the most out of the experience.

Models can range from 5” to 12” in length, and the girth can start around 2” and up to 7”.

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Realistic Dildos

For realistic dildos, you could go bigger than your average purchase. To know which size fits best, find the general circumference of your vagina. 

Realistic dildos can have a girth of around 2” to larger varieties that range from 8” and above; uncut dildos will be even thicker.

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Strapless Strap-ons

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As for strap-ons and strapless strap-ons, sizes tend to be limited. The length usually reaches only up to 7”. And for the circumference, it can go from under 4” to at least 5.5”. 

Double-sided strap-ons tend to be shorter, having a length of around 5” and a 4.5” circumference on average.

Of course, users would also have to be aware of the bulb size, as that should fit right into the vagina. They keep the strap-on in place, so make sure you have them cater to your preferred width. 

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Suction Cup Dildos

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Suction cup dildos are for stimulating yourself hands-free. So you need to get the right size as you’ll solely rely on your body weight and movements for this one. 

These dildos can range from 5” to a staggering length of 10”. For the circumference, they usually go from 2”-3”. 

For the shorter suction cup variants, dildo sizes can even go up to 13” in length.

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Vibrating Dildos

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Vibrating dildos are just like your regular dildos, except they have an extra “oomph” in them. 

To no one’s surprise, they vibrate and offer more stimulation. Insertable lengths can range from 5” up to 8”. 

Meanwhile, their girth or circumference can go from around 4” to 5”. 

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Inflatable Dildos

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Inflatable dildos tend to be more portable than your average-sized dildo and vary massively in size. Insertable lengths go between 6”-7” with an average circumference of 2”-8”.

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Squirting Dildos

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Squirting dildos must be long and wide to fit a tube inside for ejaculation. They tend to measure like most soft dildos, having, on average, an insertable length of 6”-8” and a circumference of 2”-6”.

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Small Dildos

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You might want a small dildo so you can stay discreet or travel around with your toy. Small dildos will obviously be smaller than your average silicone dildo. 

Expect a length of about 5” and a 2”-3” circumference when choosing a small dildo.

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Huge Dildos

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For big huge dildos, the bigger the size, the better, right? We agree. Most measure about 9”-10” in length and have a slimmer circumference of 2”-4”, depending on your chosen type.

There are some huge dildos, like fisting dildos, that have a massive girth and small length to imitate a fist.

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Metal Dildos

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If you’re into your BDSM and love metal and chains, a metal dildo will be a great choice. Metal dildos often measure the same as average silicone dildos but weigh more.

Lengthwise, expect any size between 8″ -11″ and a slimmer circumference of 2″ -3″. Many people like these dildos for anal play since they are thinner; just make sure they have a stopper on the end.

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Fantasy Dildos

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Fantasy dildos come in all shapes and sizes, whether you’re looking for a dragon dildo or a tentacle-looking one.

The length of these dildos can be between 7″ -9″ and have diameters of 3″ -4″— different textures and tapering affect this.

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Black Dildos

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If you’re looking for a black dildo, expect larger sizes of 7″ -11″ in length and a width of 2″ -3″. 

Many of these silicone dildos will have suction bases, which are great for solo play.

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Other People’s Tips & Experiences

Now, let’s take a look at what other people on the internet have to say about choosing the right dildo size:

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Frequently Asked Questions Answered:

And now, I have answers for you to the most popular questions about dildo sizes:

1. What Is The Best Selling Dildo Size?

According to research, the most popular dildo size is 7.52″ in length and 5.16″ around the shaft. It’s 21% longer in length than the average penis and just a bit thicker.

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2. What Size Dildo Do Woman Prefer?

There is no one answer to this question. While the best-selling dildo size might suggest that that size is the one that women prefer, it’s not really that simple.

It really depends on women and what they prefer. Some like to use dildos that are very large, some like it small, and some like it average.

The preference also is different depending on the purpose of the dildo. If a woman is using it for vaginal masturbation, she might prefer a larger dildo than for anal masturbation.

So, there is really no one-size-fits-all answer to this question. 

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3. What Is The Biggest Size In Dildo?

There are dildos that go up to 20″ and more in length. They’re definitely for experienced users only…

But if you’re curious to know what is the size of the biggest fake dick in the world, it would be 12 feet and 4″ long. You can find an article and pictures of it here.

Really quite an impressive piece of art if you ask me!

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Conclusion

And here you have it – everything you need to know about choosing the right dildo size. 

Buying the right one might take some time and trial and error along the way. 

I recommend starting with the safe option and buying an average-sized dildo first. You can always adjust and go bigger or smaller once you know where your comfort zone is. If you want to learn more about dildos, here’s a list of our faves.

And don’t be ashamed that your personal taste in dildos is different from an average person; everyone has different tastes!