How Big Is My Dick? Measurement Guide & Size Facts

If you’ve ever wondered how big is my dick—and wanted a straight answer without hype—this guide is for you. Below you’ll learn how to measure length and girth accurately, what the average dick size really is (worldwide and by study), how to use a dick size chart for a simple dick size comparison, and how to pick the right condom fit. We’ll also show you a fast “dick calculator” method to estimate your percentile from your measurements.

TL;DR (the quick facts)

• Average erect length is about 13.1 cm (5.16 in) and average erect girth about 11.66 cm (4.59 in), based on a gold‑standard meta‑analysis of 15,521 men measured by clinicians. 
• A 2023 global review found erect length averaged ~13.93 cm (5.48 in) and appears to have increased over the past three decades (reasons unclear). 
• Most men fall within about ±1 SD of the mean—roughly 11.4–14.8 cm (4.5–5.8 in) for erect length—meaning two‑thirds are in that range. 
• Good measurement = bone‑pressed length (top side, ruler pressed to the pubic bone) + mid‑shaft girth (flexible tape). 

Step‑by‑step: how to measure your dick (correctly)

You’ll need a rigid ruler (for length), a soft measuring tape or string (for girth), and full privacy.

Measure erect length (bone‑pressed)

• Stand. Place a ruler on the top of the shaft with the zero end at the base.
• Press to the pubic bone to compress any fat/pubic hair.
• Measure in a straight line to the tip of the glans (do not include extra foreskin).
• Take 2–3 readings on different days; use the average. 

Why bone‑pressed? It’s the clinical standard because it removes soft‑tissue variation and improves accuracy for comparisons and condom sizing. Research protocols use similar methods. 

Measure erect girth (circumference)

• Wrap a flexible tape (or string) around the mid‑shaft at full erection.
• Note the circumference to the nearest mm or 1/8 in; repeat and average.

Optional: flaccid & stretched length

• Flaccid length: base to tip without stretching.
• Stretched length: gently extend the flaccid penis to a comfortable maximum at 90° from the body; measure along the top. (Useful if full erection isn’t possible during measurement.)

Pro tips for accuracy

• Warm room; relax—cold and anxiety shrink measurements.
• Full erection quality matters; re‑measure if not fully hard.
• Curved penis? Use a soft tape along the curve. 

What counts as “average” dick size?

Clinician‑measured meta‑analysis (2015):

• Erect length: 13.12 cm (5.16 in), SD 1.66 cm
• Erect girth (circumference): 11.66 cm (4.59 in), SD 1.10 cm
  (Nomograms from this study are widely used for percentiles.) 

Global trend (2023):

• Pooled means across 55,761 men: flaccid 8.70 cm, stretched 12.93 cm, erect 13.93 cm (5.48 in).
• Authors reported erect length increased over ~30 years (causes not settled). 

What influences the numbers?
Measurement method (bone‑pressed vs skin‑to‑tip), who measures (clinician vs self‑report), geography, and participant recruitment can all shift averages. Clinician‑measured datasets avoid “tall tales.” A 2021 review estimates clinician‑measured erect length ~5.36 in (13.61 cm) across 10 studies. 

Fun fact: Height shows only weak/moderate correlation with length—not reliable for prediction. Shoe size myths, begone. 

Dick size chart (simple percentiles you can use)

Use your bone‑pressed erect length. The chart below approximates where many men fall, based on the 2015 nomograms (mean 13.12 cm, SD 1.66 cm) and summaries that present 5th–95th percentile cutoffs.

A mainstream medical explainer, drawing on the same nomograms, notes ~3.94 in (~10 cm) ≈ 5th percentile and ~6.3 in (~16 cm) ≈ 95th percentile.

DIY “dick calculator”: Convert your length to cm, then locate your range in the table. That’s your quick percentile estimate—no app required.

Girth matters (sometimes more than length)

Partners often report that girth contributes as much or more to sensation because it affects stretch and contact. Clinically, the average erect girth is about 11.66 cm (4.59 in); most men fall within roughly ±1 cm (~0.4 in) of that. 

How to measure your dick size for condoms (no guesswork)

Condom sizing is mostly about girth, not length. Brands publish nominal width (the flat width of the condom). To estimate your nominal width:

• Measure erect girth in mm.
• A quick rule used by fit guides: nominal width ≈ half your circumference (because it’s measured flat). For example, 120 mm girth → ~60 mm nominal width. Retailers and professional fitters present ranges like 52–54 mm (regular), 55–60 mm (large), etc. 
• Some guides also show diameter ≈ girth/π as a cross‑check (useful if a brand lists diameter). 

Brand examples and pharmacy charts align: ~4.25–5 in girth fits most “regular” condoms; larger girths benefit from 55–60 mm nominal widths (or more). Always check the brand’s chart. 

How to do a real dick size comparison (without the head games)

• Measure correctly (bone‑pressed length + mid‑shaft girth).
• Use percentiles, not guesses from porn. Porn uses angles, distance, and casting that distort reality.
• Remember that two‑thirds of men are clustered close to the mean (±1 SD). If you’re ~4.5–5.8 in long erect, you’re literally in the middle majority.

What can change your measurement (short‑term vs real change)

• Short‑term shrinkers: cold, stress/anxiety, hunger, alcohol, dehydration, some meds.
• Erection quality: harder erections measure longer; re‑measure on different days. 
• Body composition: more pubic fat hides a bit of base length (bone‑pressed removes this).
• Time trend: The 2023 review suggests erect length has increased across regions over ~30 years; the cause is unknown and debated (environment, sampling, methods). Interesting, but it doesn’t change how you should measure today. 

How to measure curved penises (Peyronie’s or natural curves)

Use a soft tape along the top‑side curve for length. Note your girth as usual at mid‑shaft. For therapy or medical concerns, talk to a clinician; but for sizing and comparisons, consistent self‑measurement is fine. 

Size & pleasure: what partners actually say

A large U.S. probability sample found many women need or prefer clitoral stimulation during intercourse to reach orgasm; length alone isn’t the deciding factor. Angle, rhythm, communication, and external stimulation tend to matter more for shared pleasure. (Translation: technique beats centimeters.) 

Training sensation, stamina, and control (optional tools)

If you want to practice edging, rhythm, or endurance, a male stroker can help you test patterns and pressure consistently. Browse our Male Stroker Toys, or compare features on a versatile option like the E‑Fun Trainer Vibrating Male Stroker (multiple modes for pacing and recovery). Keep lube water‑based, clean after use, and take rest days—overtraining can lead to temporary numbness.

Key takeaways

• To answer how big is my dick, measure bone‑pressed erect length and mid‑shaft girth—then compare with percentiles rather than porn.
• Average sits near 5.16–5.48 in length and ~4.6 in girth depending on the dataset; two‑thirds of men fall close to the mean.
• For condoms, size to girth: nominal width ≈ half your circumference (mm). 
• Confidence and pleasure come more from fit, stimulation, and technique than from chasing centimeters.

Frequently Asked Questions

How do I measure my dick at home without messing it up?

Stand; measure bone‑pressed erect length along the top from base (pressed to pubic bone) to glans tip; measure mid‑shaft girth with a soft tape. Repeat on 2–3 days and average. 

What is the average dick size—really?

Clinician‑measured averages: ~5.16 in (13.12 cm) length and ~4.59 in (11.66 cm) girth; another global review reports ~5.48 in average length. Differences reflect methods and samples.

Where do I fall on a dick size chart?

Use your length to find your percentile range (see chart above). Roughly speaking, ~4.0 in is around the 5th percentile, ~6.3 in around the 95th—most men sit between. 

Does girth matter more than length?

Girth strongly affects stretch and contact; many partners report girth contributes more to sensation than pure length. Average erect girth is ~4.59 in (11.66 cm). Fit condoms to girth first. 

How do I pick the right condom size?

Measure girth in mm. As a quick guide, nominal width ≈ half your girth (flat width). Example: 120 mm girth → ~60 mm condom. Cross‑check brand charts. 

Is penis size increasing over time?

A 2023 meta‑analysis suggests erect length has increased worldwide across decades; causes are unclear. 

Can I make my dick longer?

Outside of surgery (which carries real risks), evidence for permanent length increase is limited. Focus on technique, arousal, angle, and communication—these matter most for pleasure and confidence. (See condom fit and toy training tips above.)