1. Match a garment to the seller's chart
2. Waist: inches, cm, chi (市尺)
3. Shoes: EU size or insole mm
4. Kids: height in cm
Why this tool works in centimetres
Letter sizes mean different things from seller to seller, and the numbers on a Chinese listing are usually measurements, not labels. So the converter above avoids a letter-to-letter table. Section 1 compares one garment you own, measured lying flat, with the chart on the listing. Sections 2 to 4 handle waist units, shoes and children. The downloadable Chinese size chart CSV is a blank template for the same measurements.
Measure a garment you like, then read the seller's cm.
1. Matching a garment to the seller's chart
Type your flat measurement, then paste the chart as size-and-number pairs separated by commas. The tool sorts them and picks the smallest size no more than 1 cm below your garment. It then states the difference and warns if you are more than 2 cm off. Aim for 4 to 8 cm of ease when you compare a body measurement with a garment (a rule of thumb, not a LitBuy figure).
Example: chest measured flat at 55 cm
Chart pasted: M 52, L 54, XL 56, 2XL 58
Smallest size at least 54 cmL (54 cm)
Difference against your 55 cm-1.0 cm
L is within 2 cm, so it passes on chest; check length and shoulder before you add the row to your list. The full routine is in the Chinese size chart guide.
Within 2 cm on chest, then check length.
2. Waist in inches, cm and chi
Type a figure into any of the three boxes and the other two fill in. Inches multiply by 2.54, and chi (市尺) uses 33.33 cm. A W32 waist is 81.3 cm round, 2.44 chi, and 40.6 cm flat; Chinese trousers charts often show the flat number, so double it before comparing. The jeans page and trousers page list what else to read on those listings.
W32 = 81.3 cm round = 40.6 cm flat.
3. Shoes: EU size and insole millimetres
Enter an EU size or an insole length in millimetres. The script assumes a typical Chinese chart, 250 mm at EU 40 plus 5 mm per size, and gives UK and US approximations. For EU 42 it returns 260 mm, UK 8, US men 9 and US women 10.5. Treat that as a starting point: charts differ by about 5 mm between sellers. The better test is the insole of a pair that fits you, compared with the listing's own mm column; the shoes page and slides page add category details.
Your own insole beats any conversion.
4. Kids: height in centimetres
Chinese children's clothes are usually sold by height, so enter yours. The tool rounds up to the next ten and, if that leaves under 3 cm, moves up one more. A child of 112 cm gets size 120 with 8 cm to grow. Chest and length in the chart still decide the fit, which the kids page explains.
Height first, then chest and length.
Limits and next steps
Everything here is an approximation computed in your browser, not LitBuy data. LitBuy's help centre lists colour difference and size error as not covered by QC, so ask for a ruler photo; the QC finder shows how. When the fit is settled, cost the parcel with the landed price calculator.
Convert for orientation, then verify in cm.
FAQ
Is a Chinese XL the same as an EU XL?
No. Chinese labels can run smaller than the same letter in Europe, but the gap differs by seller. Ignore the letter and compare centimetres: measure a top you like lying flat, pit to pit, and find that figure in the seller's chart. The tool does this match for you and flags anything more than 2 cm away.
How do I read a size such as 175/92A?
The first number is height in centimetres, the second is chest in centimetres, and the letter describes the build. It is a general garment tagging convention, not a LitBuy rule. For a listing in that format, treat 92 as the body chest, add 4 to 8 cm of ease for the garment's chest circumference, and halve that to compare with a flat pit-to-pit figure.
What is the difference between a flat and a round waist measurement?
A flat waist is measured across the lying garment from edge to edge, and a round waist is the full circumference, so round equals flat times two. A flat 40.6 cm is a round 81.3 cm, which is a 32-inch waist. Chinese jeans listings often give the flat figure, so check which one the chart uses.
How does the shoe conversion work?
The tool assumes a typical Chinese chart where the insole is 250 mm at EU 40 and grows by 5 mm per EU size, so EU 42 gives 260 mm. It then estimates UK and US sizes. Sellers vary by about 5 mm, so the safe method is to measure the insole of a pair that fits and compare it with the listing's millimetre column.
How are children's sizes on Chinese listings named?
Children's sizes usually name the child's height in centimetres, such as 110, 120 or 130, not an age. The tool takes the next size up that leaves at least 3 cm of growing room, so a 112 cm child gets 120. Check chest and length in the chart too, because brands cut the same label differently.
Can I trust age labels or letters on a kids' listing?
Not on their own. A height-based number is more reliable than an age label or S, M, L, but it still depends on the seller's cut. Read the chart's chest and length columns in centimetres and compare them with a garment your child already wears. If the two disagree, go by the measured garment.