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GB/T 36935-2025Footwear - Conversion of sizing systems (English PDF)

鞋类 鞋号对照表

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Issued by

State Administration for Market Regulation

Level / Type

National · Recommended

Issue date

October 31, 2025

Implementation date

May 1, 2026

Scope

GB/T 36935-2025 is the English-translated version of 鞋类 鞋号对照表.

GB/T 36935-2025 — This document provides coverage of major shoe sizing systems (world shoe sizes, European shoe sizes, British shoe sizes, Chinese shoe sizes, Japanese shoe sizes, and Korean shoe sizes).

This is a chart comparing three shoe sizes (US shoe sizes). Each chart is based on foot length measurements, which is the foundation of any shoe size system. The table contains information on the following aspects.

Table 1 - Adult Shoe Size Chart; Table 2 - Recommended shoe size chart for adults (simplified table); Table 3 - Children's Shoe Size Chart. Note.

Due to the different methods and meanings used in the formulation of various shoe size systems over the years, no official documents have been formed, and there is a lack of solutions for shoe size conversion issues. The plan. Tables 1 and 2 provide a helpful guide for consumers.

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Document preview — GB/T 36935-2025

National Standard of the People's Republic of China

ICS
61.060
Classification
Y 78
Replacing
GB/T 36935-2018

Issued by: State Administration for Market Regulation

Contents

  • Foreword
  • Introduction
  • 1 Scope
  • 2 Normative references
  • 3 Terms and Definitions
  • 4 Shoe size labeling
  • 4.1 General Rules
  • 4.2 Adult shoe size conversion

Foreword

This document conforms to GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents".

Drafting is scheduled.

This document replaces GB/T 36935-2018 "Footwear Size Comparison Table". Compared with GB/T 36935-2018, except for structural adjustments and...

Aside from editorial changes, the main technical changes are as follows.

a) The adult shoe size conversion and conversion table has been revised (see 4.2 and Chapter 5, 3.2 and Chapter 4 of the 2018 edition).

b) The instructions regarding the recommended shoe size labeling for adult shoes have been revised (see 4.3, 3.3 in the 2018 version).

This document adopts ISO 19407:2023 "Footwear size system - Footwear size conversion table".

The following minimal editorial changes have been made to this document.

--To align with existing standards, the standard name has been changed to "Footwear Size Comparison Table".

Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents.

This document was proposed by the China National Light Industry Council.

This document is under the jurisdiction of the National Technical Committee on Standardization of Footwear (SAC/TC 305).

Introduction

With the rapid development of international trade and cross-border online shopping for footwear products, in order to facilitate producers, distributors, and consumers in accessing information on major...

Shoe sizes are cross-referenced across different shoe sizing systems (world shoe sizes, European shoe sizes, British shoe sizes, Chinese shoe sizes, Japanese shoe sizes, Korean shoe sizes, and American shoe sizes).

For conversion, it is necessary to establish a conversion method between different shoe size systems.

Although this document allows for the conversion between major shoe sizing systems and provides approximate shoe sizes for consumers' reference, They can be used, but they cannot replace the correct labeling of Chinese shoe sizes on the shoes or packaging (including hangtags).

Shoe Size Chart

1 Scope

This document provides coverage of major shoe sizing systems (world shoe sizes, European shoe sizes, British shoe sizes, Chinese shoe sizes, Japanese shoe sizes, and Korean shoe sizes).

This is a chart comparing three shoe sizes (US shoe sizes). Each chart is based on foot length measurements, which is the foundation of any shoe size system.

The table contains information on the following aspects.

Table 1 - Adult Shoe Size Chart;

Table 2 - Recommended shoe size chart for adults (simplified table);

Table 3 - Children's Shoe Size Chart.

Note. Due to the different methods and meanings used in the formulation of various shoe size systems over the years, no official documents have been formed, and there is a lack of solutions for shoe size conversion issues.

The plan. Tables 1 and 2 provide a helpful guide for consumers.

2 Normative references

This document has no normative references.

3 Terms and Definitions

This document does not contain any terms or definitions that need to be defined.

The addresses of the terminology databases maintained by ISO and IEC for standardization are as follows.

4 Shoe size labeling

4.1 General Rules

There are currently three main shoe sizing systems (world shoe sizing, European shoe sizing, and British shoe sizing). Although there are fundamental differences between them, they all have...

There is a common benchmark—foot length. Foot length is considered a key reference point when trying on shoes; consumers' foot length can be easily measured, and it is indicated on the shoes.

The shoe size indicated indicates the foot length it can accommodate. Consumers prefer a standardized shoe size across different types or styles of shoes for ease of purchase.

Note. To check if the shoe size label is correct, an actual fit assessment of the shoes is required, which includes evaluating whether the toe allowance, foot width allowance, and foot length match the shoe size.

Satisfaction with the fit among those trying on the shoes. However, this document does not evaluate all fit indicators of the shoes, such as width, tightness, and toe thickness.

4.2 Adult shoe size conversion

The main characteristics of the shoe size system are shown below.

a) ISO 9407 specifies a world shoe size system based on foot length. The size difference is 5 mm (size difference 1) or 7.5 mm (size difference 2).

The difference is 2), both starting from 0.In practice, 10 mm is usually a whole number difference, while 5 mm is a half number difference. 7.5 mm is...

The difference is mainly applied to professional shoes. China, Japan, and South Korea all use the world shoe sizing system. Japanese shoe sizes are sometimes expressed in centimeters, not centimeters.

It is expressed in millimeters.

Note 1.Some shoes use "CM" or "CMS" to indicate the shoe size, indicating that world shoe sizes can be expressed in centimeters rather than just millimeters, although sometimes the shoe last length is expressed in centimeters.

Millimeters.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 10 pages — is available in the English PDF.

Referenced standards

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