Men's Underwear Size Chart
Stop guessing. Match standard sizes (S, M, L) to exact Waist Measurements in inches and centimeters.
Find Your Size
Visual Tape Measure
See where your measurement falls on the spectrum.
Scale shows approx. 24in to 52in range.
Asian Sizing Warning
Buying online? Asian brands (from sites like AliExpress/Temu) run extremely small. An Asian 'XL' is often equivalent to a US/UK 'Medium'. Always check the CM chart.
Where to Measure
Do not measure over your jeans. Measure around your natural waistline, where the waistband of your underwear usually sits (just above the hips).
Brand Variations
Calvin Klein fits differently than Hanes. While a 32-34 inch waist is standard 'Medium', some luxury brands cut slimmer. If you have thick thighs, size up.
Common Sizing Questions
What size underwear is a 34 inch waist?
A 34-inch waist typically falls into the 'Medium' (M) category for most US/UK brands. However, some brands might label a 34-36 inch range as 'Large' (L). Always check the specific brand chart.
Is there a difference between US and Asian underwear sizes?
Yes, a significant difference. Asian sizes are typically 1 to 2 sizes smaller than US/EU sizes. An Asian 'XL' is often equivalent to a US 'Medium'. Always size up when buying Asian brands.
How do I measure my waist for boxers?
Measure around your natural waistline, which is usually just above your hip bones. Keep the tape measure horizontal and snug but not digging into your skin.
Do cotton boxers shrink?
Yes, 100% cotton underwear can shrink by 3-5% after the first hot wash. If you are between sizes, it is often safer to size up for cotton garments.