Condom Size Chart — Find Your Perfect Fit
Finding the right condom size is one of the most important — and most overlooked — aspects of condom use. A condom that fits properly is more comfortable, more effective, and more likely to be used consistently. This complete size chart and guide will help you find your perfect fit in minutes.
Why Condom Size Matters
According to CDC guidelines, an incorrectly sized condom significantly reduces protection:
- Too tight — increases risk of breakage and reduces sensation
- Too loose — increases risk of slipping off during sex
- Right fit — stays securely in place, feels comfortable, maximizes protection
Research shows that fit problems are one of the leading causes of condom failure — not defective products.
Understanding Nominal Width
The most important measurement for condom sizing is nominal width — the flat width of the condom when laid out and measured across its opening in millimeters. This is more useful than length because condoms stretch significantly in length but width determines how snugly the condom fits.
The formula: Your penis girth ÷ 2 = Your ideal nominal width
For example: a girth of 110mm ÷ 2 = 55mm nominal width (large fit)
How to Measure Your Size
- Wait until fully erect
- Wrap a flexible measuring tape or strip of paper around the thickest part of the shaft
- Note the measurement in millimeters
- Divide by 2 to get your ideal nominal width
- Match to the chart below
If you do not have a measuring tape use a strip of paper, mark where it meets, then measure the paper with a ruler.
Condom Size Chart
| Size Category | Nominal Width | Girth Range | Best Brands |
|---|---|---|---|
| Super Snug | 45-49mm | Under 90mm (3.5″) | ONE MyONE, Caution Wear Iron Grip |
| Snug | 49-52mm | 90-104mm (3.5-4.1″) | Durex Close Fit, Lifestyles Snugger Fit |
| Standard | 52-56mm | 104-112mm (4.1-4.4″) | Trojan ENZ, Durex Extra Thin, SKYN Original |
| Large | 56-60mm | 112-120mm (4.4-4.7″) | Trojan Magnum, Durex XXL, SKYN Large |
| Extra Large | 60-64mm | 120-128mm (4.7-5.0″) | Trojan Magnum XL, ONE MyONE |
| Super Wide | 64mm+ | Over 128mm (5.0″+) | ONE MyONE Custom Fit |
Condom Length Chart
Length is less critical than width because condoms stretch significantly and excess length simply rolls at the base. Most standard condoms are 180-185mm (about 7 inches) long — enough for most people. If length is a concern:
| Length Category | Condom Length | Best For |
|---|---|---|
| Short | 160-170mm | Under 5″ erect length |
| Standard | 170-185mm | 5-6.5″ erect length |
| Long | 185-200mm | 6.5″+ erect length |
Size by Popular Brand
| Brand | Product | Nominal Width | Category |
|---|---|---|---|
| Trojan | ENZ | 53mm | Standard |
| Trojan | Magnum | 54mm base / 63mm head | Large |
| Trojan | Magnum XL | 56mm base / 65mm head | Extra Large |
| Durex | Extra Thin | 56mm | Standard/Large |
| Durex | XXL | 57mm | Large |
| SKYN | Original | 53mm | Standard |
| SKYN | Large | 57mm | Large |
| ONE MyONE | Custom Fit | 45-64mm | All sizes |
| Lifestyles | Snugger Fit | 49mm | Snug |
| Caution Wear | Iron Grip | 47mm | Super Snug |
The Best Option for Hard-to-Fit Sizes: ONE MyONE
If you have struggled to find a well-fitting condom from standard store shelves ONE MyONE Custom Fit is the answer. With 52 different sizes across 10 lengths and 9 girths — ranging from 45mm to 64mm nominal width — MyONE offers more sizing options than any other brand in the world. They offer a free FitCode sizing kit to help you find your exact size before purchasing.
Tips for Getting the Right Fit
- Always measure girth — not length — as your primary sizing reference
- If between sizes go slightly larger rather than smaller
- Try a sampler pack before buying in bulk
- Different brands with the same nominal width may fit differently due to shape variations
- A properly fitting condom should feel snug but not tight or uncomfortable
- It should unroll smoothly all the way to the base without bunching
Common Sizing Mistakes
- Grabbing “Magnum” because of the name — Magnum is a large fit, not extra large. Many people who buy Magnum actually need standard size.
- Ignoring fit issues — if condoms consistently slip, break, or feel uncomfortable that is a sizing problem worth solving
- Measuring length instead of girth — length is far less important than girth for condom fit
The Bottom Line
Finding your correct condom size takes 5 minutes and makes a significant difference in both comfort and effectiveness. Measure your girth, divide by 2, and match to the chart above. If standard sizes have never worked well for you consider a custom-fit option like ONE MyONE — your health and comfort are worth the extra step.
Related Articles
- Why Condom Sizes Matter and How to Measure
- Best Condoms of 2026
- How to Choose the Best Condom for You