Always check the listing first
Before ordering, scroll down on the product page and look for a sizing chart in the description. Most sellers include one, and it is the most reliable source for that specific item. Seller charts will list measurements in centimetres, use those against your own measurements rather than guessing from a label size.
Seller sizing charts can differ significantly between stores, even for the same item. Never assume a size M from one seller is the same as a size M from another.
If the chart is in Chinese, just click on the image in the ACBuy listing description to translate it.
Key measurements to know
Measure yourself with a soft tape and keep these numbers handy. When comparing against a seller chart, these are the ones that matter most.
Tops
- Shoulder: across the back from shoulder seam to shoulder seam
- Chest: across the chest, measured below the armpit
- Length: from the back of the neck down to the hem
- Sleeve: from the shoulder seam to the sleeve hem
Bottoms
- Waist: across the top of the waistband
- Hip: across the widest part of the seat
- Thigh: across the upper thigh, just below the crotch
- Outseam: from waistband top to hem along the outer leg. Often listed simply as Length in seller size charts
- Inseam: from crotch to hem along the inner leg
- Leg opening: across the hem at the bottom of the leg
Compare QC photos before buying
Standard QC photos are flat lay shots taken by the agent in the warehouse, typically with a ruler placed next to the item. They are useful for checking construction and proportions, not for seeing how something fits on a person. Search for existing QC photos on the QC Finder to get a better sense of the item before buying.
- •Use the ruler in the photo to estimate the item's dimensions and cross-reference against the seller's sizing chart
- •ACBuy offers custom QC photos as a paid add-on. You can request the agent to take a specific measurement, such as the shoulder width or chest, for a more precise comparison
- •Compare against items you already own and know the fit of. If your trusted hoodie is a certain shoulder width, match that against the seller chart
Shoe size conversion
EU sizes are the most consistent. When in doubt, go by EU size.
Men
| US | EU | UK |
|---|---|---|
| 6 | 38–39 | 5.5 |
| 7 | 39–40 | 6.5 |
| 8 | 41 | 7.5 |
| 9 | 42 | 8.5 |
| 10 | 43 | 9.5 |
| 10.5 | 44 | 10 |
| 11 | 44–45 | 10.5 |
| 12 | 46 | 11.5 |
| 13 | 47 | 12.5 |
Women
| US | EU | UK |
|---|---|---|
| 5 | 35–36 | 2.5 |
| 6 | 36–37 | 3.5 |
| 7 | 37–38 | 4.5 |
| 8 | 38–39 | 5.5 |
| 9 | 39–40 | 6.5 |
| 10 | 40–41 | 7.5 |
| 11 | 41–42 | 8.5 |
| 12 | 42–43 | 9.5 |