Size Chart Conversion Made Easy
Guide

Size Chart Conversion Made Easy

2026-04-056 min read

Chinese sizing vs US/EU sizing decoded. Never order the wrong size again with our comprehensive conversion tool and tips.

Why Sizing Is the #1 Issue

Ask any rep veteran about their biggest regret, and sizing mistakes dominate the conversation. Chinese manufacturers often use Asian sizing standards, which run 1-2 sizes smaller than US/EU equivalents. A 'Large' T-shirt from a Chinese seller often fits like a US Medium. This guide provides conversion tables, measurement techniques, and agent-specific advice to eliminate the guesswork.
Asian SizeUS SizeEU SizeChest (cm)Waist (cm)
SXS44-4688-9272-76
MS46-4892-9676-80
LM48-5096-10080-84
XLL50-52100-10484-88
XXLXL52-54104-10888-92
3XLXXL54-56108-11292-96

How to Measure Yourself

Do not guess. Use a soft measuring tape and measure: Chest (fullest part, under armpits), Shoulders (across the back, seam to seam), Sleeve (from shoulder seam to wrist), Length (from collar to hem), Waist (natural waistline), Inseam (crotch to ankle). Write these numbers down. When shopping, compare them to the seller's size chart, not just the S/M/L label.
1

Measure Chest

Wrap tape under armpits at fullest point. Keep tape level.

2

Measure Shoulders

Measure across back from seam to seam.

3

Compare to Chart

Match your cm to the seller chart, not the label.

4

Add Allowance

Add 2-3cm for fitted, 4-6cm for relaxed fit.

Shoe Size Conversions

Sneaker reps are almost always listed in EU sizes. If you are a US 9, you are an EU 42.5. If you are a US 10, you are an EU 44. Many rep sellers only stock full sizes (no half sizes), so if you are a US 9.5, size up to EU 43. Width matters too — rep Dunks and Jordan 1s tend to run narrow. If you have wide feet, consider going up half a size or choosing a batch known for wider lasts.

Pants and Shorts Sizing

Chinese pants sizing is notoriously inconsistent. Some sellers use waist measurements in cm (e.g., 80 = 31-inch waist), while others use arbitrary number codes. Always look for a size chart with specific measurements. For shorts, the inseam is critical — 5-inch inseams are trendy but short; 7-inch is the safe middle ground. Our product modals include QC measurement photos for pants when available.

When in Doubt, Size Up

This is the golden rule of rep shopping. A slightly oversized item can be tailored or worn as an intentional look. A too-small item is unwearable. If you are between sizes, always go up. For hoodies and jackets, this is especially true because you will likely layer them over other clothing.

Frequently Asked Questions

Do all sellers use the same size chart?

No. Every factory has slightly different measurements. Always check the specific chart for each product.

What if my measurements fall between two sizes?

Size up. It is always better to have room to tailor down than to stretch out a garment that is too small.

How accurate are agent's flat-lay measurements?

Usually within 1-2cm. Slight variations are normal due to fabric stretch and measurement technique.

Tags:size chart conversionchinese sizingus eu size conversionrep sizing guide
OopBuy Spreadsheet
OopBuy Spreadsheet

Your curated reps shopping hub. Discover top finds, compare deals, and shop with confidence through OopBuy.

Categories

    More

      © 2026 OopBuy Spreadsheet. All rights reserved.

      Not affiliated with OopBuy. We are an independent discovery platform.