---
title: "B Series Paper Sizes"
url: https://mainthebest.com/sizes/b-series-paper-sizes/
date: 2026-10-21
modified: 2026-10-21
lang: en
author: "Gunawan"
description: "This page contains about B Series Paper Sizes, Standard Dimensions or Length and Width of B Sizes in mm, cm, inch. It is includes B0, B1, B2, B3, B4, B5, B6, B7, B8, B9, B10. B Series folding one in half and rounding down to the nearest millimeter gives the next in the series."
categories: - "General"
tags: - "Paper"
image: https://mainthebest.com/sizes/wp-content/uploads/sites/3/2020/11/b-series-paper-sizes.jpg
word_count: 805
---
# B Series Paper Sizes
**[The B Series Paper Sizes](https://mainthebest.com/sizes/b-series-paper-sizes/)** is defined in the standard as a subsidiary series of sizes that obtained by placing the geometrical means between adjacent sizes of the A series in sequence. The use of the geometric mean makes each step in size: B0, B1, B2, B3, B4, B5, B6, B7, B8, B9, B10, smaller than the previous one by the same factor. There are many other paper size standards conventions have existed at different times and in different countries worldwide.
The B Series Paper Sizes Standard folding one in half and rounding down to the nearest millimeter gives the next in the series. It is defined by divided by 2 or half the size of the previous paper in a larger dimension. It can be used for writing paper, cards, printing documents, envelopes, and also in applications such as Microsoft Office like Word or Excel.
- The B Series Paper Sizes in mm, cm, inch
B0
- B1
- B2
- B3
- B4
- B5
- B6
- B7
- B8
- B9
- B10
- Table
## B0, B1, B2, B3, B4, B5, B6, B7, B8, B9, B10
### B0 Paper Sizes
The dimension of **B0 Paper Sizes in mm, cm, inch:**
- B0 Size in mm is 1000 × 1414 millimeter.
- B0 Size in cm is 100 × 141.4 centimeter.
- B0 Size in inch is 39.4 × 55.7 inches.
### B1 Paper Sizes
The dimension of **B1 Paper Sizes in mm, cm, inch:**
- B1 Size in mm is 707 × 1000 millimeter.
- B1 Size in cm is 70.7 × 100 centimeter.
- B1 Size in inch is 27.8 × 39.4 inches.
### B2 Paper Sizes
The dimension of **B2 Paper Sizes in mm, cm, inch:**
- B2 Size in mm is 500 × 707 millimeter.
- B2 Size in cm is 50 × 70.7 centimeter.
- B2 Size in inch is 19.7 × 27.8 inches.
### B3 Paper Sizes
The dimension of **B3 Paper Sizes in mm, cm, inch:**
- B3 Size in mm is 353 × 500 millimeter.
- B3 Size in cm is 35.3 × 50 centimeter.
- B3 Size in inch is 13.9 × 19.7 inches.
### B4 Paper Sizes
The dimension of **B4 Paper Sizes in mm, cm, inch:**
- B4 Size in mm is 250 × 353 millimeter.
- B4 Size in cm is 25 × 35.3 centimeter.
- B4 Size in inch is 9.84 × 13.9 inches.
### B5 Paper Sizes
The dimension of **B5 Paper Sizes in mm, cm, inch:**
- B5 Size in mm is 176 × 250 millimeter.
- B5 Size in cm is 17.6 × 25 centimeter.
- B5 Size in inch is 6.93 × 9.84 inches.
### B6 Paper Sizes
The dimension of **B6 Paper Sizes in mm, cm, inch:**
- B6 Size in mm is 125 × 176 millimeter.
- B6 Size in cm is 12.5 × 17.6 centimeter.
- B6 Size in inch is 4.92 × 6.93 inches.
### B7 Paper Sizes
The dimension of **B7 Paper Sizes in mm, cm, inch:**
- B7 Size in mm is 88 × 125 millimeter.
- B7 Size in cm is 8.8 × 12.5 centimeter.
- B7 Size in inch is 3.46 × 4.92 inches.
### B8 Paper Sizes
The dimension of **B8 Paper Sizes in mm, cm, inch:**
- B8 Size in mm is 62 × 88 millimeter.
- B8 Size in cm is 6.2 × 8.8 centimeter.
- B8 Size in inch is 2.44 × 3.46 inches.
### B9 Paper Sizes
The dimension of **B9 Paper Sizes in mm, cm, inch:**
- B9 Size in mm is 44 × 62 millimeter.
- B9 Size in cm is 4.4 × 6.2 centimeter.
- B9 Size in inch is 1.73 × 2.44 inches.
### B10 Paper Sizes
The dimensions of **B10 Sizes in mm, cm, inch:**
- B10 Size in mm is 31 × 44 millimeter.
- B10 Size in cm is 3.1 × 4.4 centimeter.
- B10 Size in inch is 1.22 × 1.73 inches.
### Table of The B Series Paper Sizes
Here is a Table of The B Series Paper Sizes in unit of measurements in mm, cm, inches.
| B Series Paper Sizes |
| -------------------- |
| Size | mm | cm | inch |
| B0 | 1000 × 1414 | 100 × 141.4 | 39.4 × 55.7 |
| B1 | 707 × 1000 | 70.7 × 100 | 27.8 × 39.4 |
| B2 | 500 × 707 | 50 × 70.7 | 19.7 × 27.8 |
| B3 | 353 × 500 | 35.3 × 50 | 13.9 × 19.7 |
| B4 | 250 × 353 | 25 × 35.3 | 9.84 × 13.9 |
| B5 | 176 × 250 | 17.6 × 25 | 6.93 × 9.84 |
| B6 | 125 × 176 | 12.5 × 17.6 | 4.92 × 6.93 |
| B7 | 88 × 125 | 8.8 × 12.5 | 3.46 × 4.92 |
| B8 | 62 × 88 | 6.2 × 8.8 | 2.44 × 3.46 |
| B9 | 44 × 62 | 4.4 × 6.2 | 1.73 × 2.44 |
| B10 | 31 × 44 | 3.1 × 4.4 | 1.22 × 1.73 |
The tolerances specified in the standard are:
- ±1.5 mm for dimensions up to 150 mm,
- ±2.0 mm for dimensions in the range 150 to 600 mm, and
- ±3.0 mm for dimensions above 600 mm.
These are related to comparison between series A, B and C.