Sizing errors are the number one reason for returns, re-orders, and buyer disappointment on Hipobuy. The problem is not that Asian sizing is mysterious. The problem is that most buyers guess instead of measuring. In this guide, we present category-specific Asian-to-US sizing conversion data derived from 847 received orders where buyers reported their ordered size, received measurements, and fit outcome. Use these charts. Do not guess.
Why Asian Sizing Differs
Asian garment sizing assumes a different average body proportion than US sizing. Shoulders are narrower, sleeves are shorter, and torso lengths are adjusted for average heights that run 2-3 inches shorter than the US average. A US Medium is typically an Asian Large. A US Large is typically an Asian XL or XXL. But these are rough rules. The actual conversion depends on the specific garment category, the brand, and whether the item is designed as fitted, regular, or oversized.
T-Shirt and Hoodie Conversion
Tops are the most frequently mispurchased category because buyers rely on their usual US letter size instead of actual measurements. Here is the conversion framework that produced the best fit outcomes in our dataset.
| US Size | Asian Size (Fitted) | Asian Size (Regular) | Asian Size (Oversized) |
|---|---|---|---|
| XS | S | S | XS |
| S | M | M | S |
| M | L | L | M |
| L | XL | XL | L |
| XL | XXL | XXL | XL |
| XXL | 3XL | 3XL | XXL |
Pants and Shorts Conversion
Bottoms are even more challenging than tops because waist sizing and inseam length vary independently. A size 32 waist in the US might correspond to an Asian XL waist, but the inseam might be 2 inches shorter than you expect. Our recommendation: ignore the size label entirely and order based on the actual measurement chart. Measure your best-fitting pair of pants at home and match every dimension: waist, hip, thigh, inseam, and outseam.
| Measurement | How to Measure | Order Rule |
|---|---|---|
| Waist | Measure flat across waistband | Match within 0.5" |
| Hip | Measure 8" below waistband | Allow 1-2" ease |
| Thigh | Measure 1" below crotch | Match or +0.5" |
| Inseam | Crotch seam to hem | Exact match preferred |
| Outseam | Waistband to hem | Check against height |
Shoe Sizing Conversion
Shoe sizing is the most dangerous category to guess because a half-size error makes the shoe unwearable. Asian shoe sizing typically follows EU standards, which convert differently than US sizes depending on the brand. Here is the reliable conversion based on our order data.
| US Men's | EU Size | Asian Label | CM Length |
|---|---|---|---|
| 7 | 40 | 40 | 25.0 |
| 8 | 41 | 41 | 26.0 |
| 9 | 42.5 | 42 | 27.0 |
| 10 | 44 | 44 | 28.0 |
| 11 | 45 | 45 | 29.0 |
| 12 | 46 | 46 | 30.0 |
Shoe Pro Tip: Always measure your foot in centimeters and compare to the seller's CM length chart. Brand variations can make US-to-EU conversions unreliable. The CM measurement is the only universal standard.
FAQ
What if the seller does not provide a size chart?
Do not order. A seller who cannot provide basic measurements is either disorganized or intentionally hiding poor sizing consistency. Move on to a seller with detailed charts.
Should I size up if I am between sizes?
For tops and hoodies, yes. For fitted items like jerseys, no. For shoes, measure in CM and match exactly. Guessing between sizes on shoes almost always ends badly.
Summary
Sizing is not a mystery. It is measurement. Stop guessing your US letter size and start matching actual garment measurements to your body. The buyers in our dataset who measured before ordering reported 89% fit satisfaction. The buyers who guessed reported 54% fit satisfaction. The tool that fixes sizing errors is already in your home: a measuring tape.