Best 20 Inch Dildos: Top 10 Picks

Looking for a 20 inch dildo or an extra-long dildo that's close to that size? With so many long fantasy designs available, choosing the right one isn't simply about finding the biggest number. The shape, texture, available sizes, and special features can all make a difference.

We've selected 10 extra-long dildos ranging from 19.8 to 40.1 inches, including exact 20-inch options, near-20-inch designs, and longer toys for those who want room to explore different sizes. From realistic 20-inch dragon dildos to tentacles, spirals, ribbed designs, and inflatable options, this list gives you several different ways to find the right fit.

*All lengths listed below refer to total product length. Check the individual product page for complete dimensions, available variants, and product-specific details.

These picks were selected based on their total length, available size options, design, and distinctive features. The list starts with options closest to 20 inches before moving into longer designs that give you more room to choose your preferred size.

If you're searching specifically for a 20 inch dildo, Carson is one of the most straightforward choices on this list. Its total length is exactly 20 inches, so you don't have to compromise by choosing something slightly shorter or longer.

What makes Carson more distinctive is its dragon-inspired fantasy design. Rather than simply offering extra length, it combines that size with a strong fantasy aesthetic, making it a natural choice for anyone who wants a long dragon dildo.

Carson is especially appealing if your priority is simple: you want a 20-inch dildo, and you want a fantasy design to go with it.

If you're searching for a long dildo but want something with more than just an unusual shape, Hella offers two different versions to choose from.

The Endoscopic Camera version adds a built-in camera feature, while the Squirting version offers a squirting function. Both versions are 19.8 inches long, so your choice comes down to the feature you prefer.

Its tentacle-inspired design also sets Hella apart from the dragon and spiral options on this list.

It is available in multiple sizes, with the largest option reaching 20 inches.

That makes it a good choice for shoppers who specifically want a 20-inch option but prefer a more sculpted design rather than a straightforward fantasy silhouette.

Worm II also offers custom color options, allowing you to personalize the appearance of your toy.

Cannonix is one of the most different products in this list because it uses an inflatable design rather than relying on a fixed shape.

It comes in 15-inch and 21.7-inch sizes. When inflated, the toy expands in both length and girth, giving the experience a different dynamic from a conventional fixed-size dildo.

Choose Cannonix if: the inflatable feature is just as important to you as the extra-long size.

Its appeal comes from its slim, elongated shape and broad size range, making it a good alternative to the more heavily sculpted fantasy designs in this list.

That makes it a good option if you're interested in a 20-inch dildo but don't necessarily want to lock yourself into exactly 20 inches. You can choose a size around that range or go longer.

Its long slim design gives it a strong identity, while custom color options let you personalize its appearance.

Worm is another spiral option, but its size range extends further than Worm II, with available sizes from 14 to 24 inches.

That makes it a good choice if you're interested in the spiral design but don't necessarily want to stop at 20 inches. You can choose a size around the 20-inch range or go longer depending on your preference.

Like Worm II, Worm also offers custom color options, giving you more freedom to personalize its appearance.

Syvern II is for shoppers who want their extra-long dildo to look more like a fantasy creature than a traditional dildo.

Its available sizes range from 14 to 24 inches, putting several options around the 20-inch range. The tentacle-inspired monster design gives it a very different visual character from the dragon and spiral products.

Custom color options also allow you to create a look that is more personal to you.

Dragon Tower stands out from the other products on this list with its distinctive tower-like shape and ribbed exterior.

Available in sizes from 15 to 24 inches, it offers several options around the 20-inch range while keeping its tall, structured appearance.

The ribbed exterior also gives it a clearly different visual profile from the smoother and spiral options elsewhere in this list.

Nereid offers five sizes from 12 to 30 inches, giving you significantly more flexibility than products limited to a single long size.

Its tentacle-inspired fantasy design also makes it a natural alternative to the dragon and spiral options.

Nothosaur ALLA is one of the most versatile options on this list when it comes to length. With six sizes ranging from 11.8 to 40.1 inches, it covers a huge range, including several options for shoppers looking around the 20-inch mark.

That makes ALLA especially useful if you're not completely sure that 20 inches is the size you want to stop at. You can choose a size around your target or explore substantially longer options.

ALLA also supports custom color options, giving you the ability to personalize the appearance of the toy.

If you're specifically searching for a 20 inch dildo, start with the length you actually want rather than simply choosing the largest option available.
For shoppers who already know they want an extra-long fantasy dildo, the biggest decision may ultimately be which design you want at that length: dragon, tentacle, spiral, ribbed, or inflatable.