First times
Dildo size guide: how to choose the right size
Measure twice, play once. Real lengths and widths, so the box holds no surprises.
Reviewed by Bedside CSO (Chief Sex Officer) · Prices checked · How we rank
The verdict
Pick width first. An average erect penis is about 1.5 inches wide and just over 5 inches long, so the Vixen Mustang (6.5 inches insertable, 1.6 inches wide) feels familiar to most people. New to insertables? Start with the Tantus Silk Medium at 5.25 by 1.1 inches.
- Width is what you feel most. Choose it first, then length.
- For a first toy, go one step smaller than you think.
- A flared base keeps any size safe and lets it ride in a harness.
Quick picks
Best average sizeNo. 1 ↓
Vixen Mustang
Why it's here: Lifelike VixSkin, average width.
Average size, lifelike feel
$125.75 at SheVibe · ships freeBest first stepNo. 2 ↓
Tantus Silk Medium
Why it's here: Firm, smooth and slim.
The easy first step
$42 at SheVibeSlimmestNo. 3 ↓
Tantus Silk Small
Slimmest of the nine
$31.99 at SheVibeBest step upNo. 4 ↓
Vixen Maverick
Thick tip, G-spot curve
$129.50 at SheVibe · ships freeBest long and smoothNo. 5 ↓
Tantus Silk Large
Long, smooth, 1.5 inches
$52 at SheVibe
At a glance
Compare the top 8
- 1
Vixen MustangBest average size$125.75from 16 reviews$125.75 → - 2
Tantus Silk MediumBest first step$42Too new to rate$42 → - 3
Tantus Silk SmallSlimmest$31.99$31.99 → - 4
Vixen MaverickBest step up$129.50from 10 reviews$129.50 → - 5
Tantus Silk LargeBest long and smooth$52from 21 reviews$52 → - 6
Tantus EchoBest G-spot curve$51.99Too new to rate$51.99 → - 7
Colours Dual Density 8" Silicone Suction Cup DildoLongest here$50.75 to $54.95from 11 reviews$50.75 → - 8
Vixen Buck Vixskin DildoWidest at the base$129.50$129.50 →
Side by side
Every size, measured
Measurements from each SheVibe listing, checked October 18, 2026. Width is edge to edge at the widest insertable point.
| Spec | Insertable | Widest |
|---|---|---|
| Tantus Silk Small | 4.25 in | 0.8 in |
| Tantus Silk Medium | 5.25 in | 1.1 in |
| Tantus Silk Large | 7 in | 1.5 in |
| Vixen Mustang | 6.5 in | 1.6 in |
| Tantus Echo | 7 in | 1.75 in |
| Colours Dual Density 8 | 7.25 in | 1.9 in |
| Vixen Buck | 6 in | 2 in |
| Vixen Maverick | 6.75 in | 2 in |
| Colours Pleasures Thick 8 | 6.75 in | 2.1 in |
The ranking
Dildos by size, ranked
Ranked by demand, review quality, availability, and fit. Stars show review quality only.
No. 1 · Vixen Creations
Best average size
Vixen Mustang
Soft VixSkin that gives like real skin over a firm core. It's the dildo people put in the Joque. Run it under warm water first and it feels even closer to the real thing.
Pros
- VixSkin dual-density silicone
- Flared base
Cons
- About 1.6 inches wide. New to pegging? Start slimmer
- Water-based lube, mild soap
Why it ranks: At 6.5 inches insertable and 1.6 inches at its widest, it's about as close to average as a dildo gets, in VixSkin that owners rate almost perfect. The size most people happily stay with.
Average size, lifelike feel
Ships discreetly from SheVibe
No. 2 · Tantus
Best first step
Tantus Silk Medium
The middle Silk: smooth platinum silicone, firm all the way through, with a flared base. The size people stay on after Small feels like a finger.
Pros
- Platinum-cure silicone
Cons
- Firm. If you wanted squish, that's Vixen
- Water-based lube
Why it ranks: 5.25 inches insertable and 1.1 inches wide: enough to feel full without any stretch to worry about. Smooth, firm and harness-ready.
The easy first step
Ships discreetly from SheVibe
No. 3 · Tantus
Slimmest
Tantus Silk Small
A slim, silky first insertable you can actually picture before it arrives. Quiet, simple, and nothing to charge.
Pros
- About 4.25 inches long and 0.8 inches wide
- Platinum silicone that's easy to clean
- Flared base, so it's safe for anal too
Cons
- Water-based lube only on silicone
- Flared base matters if you take it anal — this size can, if you want that
Why it ranks: Just 0.8 inches wide and 4.25 inches insertable, barely wider than a finger. The no-pressure place to start, and fine for anal play too.
Slimmest of the nine
Ships discreetly from SheVibe
No. 4 · Vixen Creations
Best step up
Vixen Maverick
Dual-density platinum. Soft skin over a firmer core. Pick it first if you already know you want squish and you will spend for it.
Pros
- Flared base
Cons
- Water-based lube. Silicone lube can damage silicone
- Heavier than a Silk. That's the skin
Why it ranks: The step up: 6.75 inches insertable with a 2-inch head and a curve toward the G-spot. VixSkin softens the size more than the numbers suggest.
Thick tip, G-spot curve
Ships discreetly from SheVibe
No. 5 · Tantus
Best long and smooth
Tantus Silk Large
The big Silk. Still named platinum. Still a flared base. Not a first dildo. On this list so you can see the step.
Pros
- Platinum-cure silicone
Cons
- Larger. Don't start here
- Water-based lube
Why it ranks: 7 inches insertable at 1.5 inches wide, so it's long rather than thick. Owners rate it almost perfect, and it's the natural next size after the Medium.
Long, smooth, 1.5 inches
Ships discreetly from SheVibe
No. 6 · Tantus
Best G-spot curve
Tantus Echo
Shorter, curved Tantus. Platinum silicone. A first G-spot shape if you want a bump, not length.
Pros
- Platinum-cure silicone
- Flared base
Cons
- Texture. If you wanted smooth, that's Silk
- Confirm whether your listing includes the bullet
Why it ranks: 7 inches insertable and 1.75 inches across, with a curve and a long handle for easy angles. Firm silicone reads bigger than a soft dildo of the same width.
Firm curve with a handle
Ships discreetly from SheVibe
No. 7 · Colours
Longest here
Colours Dual Density 8" Silicone Suction Cup Dildo
Realistic dual-density silicone: a firm core under a softer, skin-like outer layer, 7.25 insertable inches, 1.5 to 1.9 inches wide, on a sturdy suction cup.
Pros
- Squish on the outside, backbone in the middle
- Realistic veins and head
- Sticks to a dock, a plate or tile
Cons
- Suction wants a smooth, flat surface
- It widens toward the base, so plan for 1.9 inches, not 1.5
Why it ranks: The longest toy on the chart, with a softer outer layer that tapers wider toward the base and a suction cup for hands-free play.
Longest on the chart
Ships discreetly from SheVibe
No. 8 · Vixen Creations
Widest at the base
Vixen Buck Vixskin Dildo
A realistic dual-density Vixskin silicone dildo developed with trans activist Buck Angel, with a flared base that fits O-ring harnesses.
Pros
- Lifelike skin-soft feel
- Harness compatible
- Made to last for years
Cons
- A premium price
- Not a packer: too firm for all-day wear
Why it ranks: 6 inches insertable, 1.7 inches through the shaft and 2 inches just above the base, so the stretch comes at the end. Lifelike VixSkin, and harness-ready.
Wide at the base
Ships discreetly from SheVibe
No. 9 · Colours
Thickest here
Colours Pleasures Thick 8" Silicone Dildo
A bold purple shaft in body-safe silicone, 6.75 insertable inches and 2.1 inches at the widest point, on a strong suction cup.
Pros
- Holds on a plate, a dock or tile
- A manageable step up in girth
- Harness compatible
Cons
- Two inches plus is an advanced size. Work up to it
- One firmness throughout, not dual-density
Why it ranks: The thickest toy on the chart. Work up to it, and when you're ready it's a deeply satisfying fill.
Thickest at 2.1 inches
Ships discreetly from SheVibe
Notes from Bedside CSO (Chief Sex Officer)
Notes from Bedside CSO (Chief Sex Officer)
Most product photos hide the one number that matters. Width decides how a dildo feels far more than length, and an extra quarter inch across is a bigger change than an extra inch long.
Here are nine body-safe silicone dildos with their real insertable length and widest point, from a slim 0.8-inch first toy to a 2.1-inch step up. Every price is exact, and every toy was in stock when we checked.
Sizing a plug instead? See the butt plug size guide.
Before you buy
Buying guide
Measure something you already enjoy
Grab a toy you like, a partner's measurements or a ruler across two fingers held together. Compare that width with the chart and pick the closest, or one step smaller for your first silicone toy.
Width first, then length
Insertable length is the part past the base you can actually use, and most people use less than they expect. Choose width by feel, then a length that leaves room to hold. For harness play, 6 to 7 inches insertable is the common range.
Read this first
Mistakes to avoid
Sizing up, nice and slow
Move up about a quarter inch in width at a time, warm up with fingers or a smaller toy first, and use plenty of water-based lube. Soft dual-density silicone like VixSkin gives a little, so it can feel smaller than a firm Tantus of the same width.
No. 1 · Vixen Mustang
$125.75
FAQ
Common questions
- What size dildo is closest to average?
- Average erect size is roughly 5.2 inches long and 1.5 inches wide. The Vixen Mustang (6.5 by 1.6 inches) and the Tantus Silk Large (7 by 1.5 inches) come closest here, with a little extra length to hold.
- What size dildo should a beginner get?
- Around 1 to 1.25 inches wide and 4 to 5.5 inches insertable. The Tantus Silk Small and Medium are made for exactly that first step.
- How do I turn width into girth?
- Multiply the width by 3.14. A 1.5-inch-wide dildo is about 4.7 inches around, close to the average erect girth of about 4.6 inches.
- Does a dual-density dildo feel smaller?
- A little. The soft outer layer gives under pressure, so VixSkin dildos like the Mustang and Maverick feel gentler than a firm dildo of the same width.
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