Overview
21x6 • 8.3" × 2.4"
21x6
8.3 inch length • 2.4 inch diameter
Penis Category:
above average
Cock L/D ratio: 3.5
Cock Volume: ~594 mL
Cock Cross-section: 28.27 cm²
Relative scales
Length (vs. 10–22 cm typical)
Diameter (vs. 4.0–7.5 cm typical)
Girth (vs. 11.5–23 cm typical)
Core metrics
Length
21 cm
8.3 inch
Category: long
Real-world examples
• A4 short edge = 21.0 cm (exact)• Chef’s knife blade (small) ≈ 20–21 cm
• DL envelope long side ≈ 22 cm (slightly longer)
• Two credit cards end-to-end ≈ 17.2 cm (shorter)
• 21 cm ≈ 8.3"
Diameter
6 cm
2.4 inch
Category: average
Real-world examples
• Soda can ≈ 6.6 cm Ø (slightly bigger)• Tennis ball ≈ 6.7 cm Ø (bigger)
Circumference (≈ π × diameter)
18.8 cm
7.4 inch
Fit-critical value for sleeves & rings.
Surface & volume
Penis Surface index
~396 cm²
Penis Volume (cylinder)
~594 mL
Penis Mass (≈ water)
~594 g
Condom sizing guide
Recommended nominal width
94 mm
XXL / Wide
Closest catalog size: 72 mm (a bit tighter (-22 mm))
Also try (± stretch)
70 mm
71 mm
Stretch window (comfort)
• Target girth: 18.8 cm
• Comfortable range (≈ −8% … +8%): 17.3–20.3 cm
• As nominal width: 87–102 mm
• Comfortable range (≈ −8% … +8%): 17.3–20.3 cm
• As nominal width: 87–102 mm
Materials and brands vary — if in between, start with the closest and adjust.
Condom length tip
Consider longer sleeves (≈ 195–200 mm). Width map (45–72 mm)
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
Highlighted: need (computed) and best (closest available).
At a glance
Profile
• L/D ratio: 3.5
• Status: above average
• Inch readout: 8.3" × 2.4"
• Status: above average
• Inch readout: 8.3" × 2.4"
Handy links
Fun fact
Animal comparison
Target length: 21 cm (≈ 8.3" )
🦔 Hedgehog (juvenile)
Body ~20–30 cm
🦔 Hedgehog (juvenile)
Body ~20–30 cm