Sizing charts, measurement tips, and common mistakes for every category. Learn how to convert Asian sizes to US sizes and measure accurately.
Why Sizing Is the #1 Source of Returns
Sizing mistakes are the most common reason for returns and complaints in the JoyaGoo Spreadsheet. The problem is that Asian sizing is different from US sizing. A US Medium is often equivalent to an Asian Large. A US Large is often equivalent to an Asian Extra Large. This difference is not consistent across all sellers. Some sellers use true-to-size charts. Others use their own sizing system. The spreadsheet notes column sometimes includes sizing warnings, but not always. The best way to avoid sizing mistakes is to measure your own clothes and compare them to the measurements in the album. Do not rely on the size label. Do not rely on your usual size. Do not rely on the seller's vague size chart. Use actual measurements. Every album should include a size chart with measurements in centimeters. If it does not, ask your agent to request one before ordering. If the seller cannot provide measurements, consider ordering from a different seller.
Size Conversion Chart by Category
Use this table as a starting point for converting Asian sizes to US sizes. These are general guidelines. Always verify with the specific seller's measurements.
| US Size | Asian Size | Chest (cm) | Length (cm) | Waist (cm) |
|---|---|---|---|---|
| XS | S | 92–96 | 64–68 | 72–76 |
| S | M | 96–100 | 68–72 | 76–80 |
| M | L | 100–104 | 72–76 | 80–84 |
| L | XL | 104–108 | 76–80 | 84–88 |
| XL | XXL | 108–112 | 80–84 | 88–92 |
| XXL | XXXL | 112–116 | 84–88 | 92–96 |
How to Measure Your Own Clothes
The most reliable way to choose the right size is to measure a piece of clothing you already own and love the fit of. Here is how to do it correctly. Lay the item flat on a hard surface. Do not measure on a bed or carpet. The surface must be flat. For T-shirts and hoodies, measure the chest width from armpit to armpit. Multiply by 2 for the full chest circumference. Measure the length from the highest shoulder point to the bottom hem. Measure the sleeve length from the shoulder seam to the cuff. For pants, measure the waist at the narrowest point. Measure the inseam from the crotch to the bottom hem. Measure the thigh width at the widest point. For shoes, measure the insole length of a shoe that fits you well. This is the most important measurement. Compare each measurement to the seller's size chart. If the measurements are within 1 to 2 centimeters, the fit will be similar. If the difference is more than 3 centimeters, consider a different size.
Lay Flat on Hard Surface
Use a table or floor. Beds and carpets give inaccurate measurements.
Measure Chest Width
For tops, measure armpit to armpit. Multiply by 2 for full circumference.
Measure Length
From the highest shoulder point to the bottom hem for tops.
Measure Waist & Inseam
For pants, measure waist at narrowest point and inseam from crotch to hem.
Measure Insole Length
For shoes, measure the insole of a shoe that fits you well.
Compare to Seller Chart
Match your measurements to the seller's size chart. Allow 1–2 cm tolerance.
Category-Specific Sizing Tips
Each category has its own sizing quirks. Here are the most important tips for each one. For shoes, always measure the insole length. Do not use your US size number directly. Some shoes run half a size small. Size up by half if you are between sizes. For hoodies and sweaters, oversized styles are intentional. If the size chart shows 120 cm chest for a Large, that is oversized. Do not size down. For T-shirts, Asian T-shirts are often shorter in length. If you are tall, check the length measurement before ordering. For jackets, puffers and bombers are bulkier. The chest measurement will be larger than a T-shirt of the same size. This is normal. For pants, Asian pants often have shorter inseams. If you are over 6 feet tall, look for pants with a long version or size up. For headwear, most caps are adjustable. One size fits most. Beanies are usually one size. For underwear, Asian underwear runs one size small. Size up by one. For jerseys, sports jerseys are designed to be loose. If you want a tight fit, size down. If you want a loose fit, use your normal converted size.
What to Do If the Size Is Wrong
If the QC photos show the wrong size, reject the QC immediately. Do not accept it and hope it fits. Your agent will return the item to the seller and request the correct size. This process takes 3 to 7 days. If the seller does not have the correct size in stock, they will offer a refund or a different color. If you receive the item and it does not fit, you cannot return it. That is why QC is critical. The only exception is if the agent made a mistake and ordered the wrong size. In that case, the agent is responsible and should fix it. To avoid this, double-check your order form before submitting. Make sure the size you wrote matches the seller's size chart. Some agents use their own sizing system. Make sure your size is converted correctly. If you are unsure, ask your agent to confirm before ordering.
Sizing Safety Rule
Never order without a size chart. Never rely on your usual US size. Always measure your own clothes and compare. These three rules will eliminate 90% of sizing mistakes.
Frequently Asked Questions
Do Asian sizes run smaller than US sizes?
Yes, usually by one full size. A US Medium is often an Asian Large. Always check the specific seller's size chart.
What if there is no size chart in the album?
Ask your agent to request measurements from the seller before ordering. If the seller cannot provide them, consider a different seller.
Should I size up for all items?
Not always. Oversized items like hoodies may already be loose. Check the measurements and compare to your own clothes.
How do I measure shoe size correctly?
Measure the insole length of a shoe that fits you well. Compare this measurement to the seller's size chart in centimeters.
What if the item is too long or too short?
Length is just as important as width. Check the length measurement before ordering. If you are tall, Asian items may be too short.