---
title: "“A” Paper Sizes – A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10 (in mm, cm, inch)"
url: https://mainthebest.com/sizes/a-series-paper-sizes/
date: 2026-11-02
modified: 2026-11-02
lang: en
author: "Gunawan"
description: "This page contains about A Series Paper Sizes in mm, cm, inch. It is serially as follow A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10. It is defined by divided by 2 or half the size of the previous paper in a larger dimension. While the most often used paper is A4 size, usually used for writing paper, and printing documents."
categories: - "General"
tags: - "Paper" - "Size" - "Standard"
image: https://mainthebest.com/sizes/wp-content/uploads/sites/3/2020/11/a-series-paper-sizes.jpg
word_count: 753
---
# “A” Paper Sizes – A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10 (in mm, cm, inch)
**The A Paper Sizes** being a standard that is often used according to "ISO" and it is widely applicable internationally, including **A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10**. There are many other paper size standards conventions have existed at different times and in different countries worldwide. It is affect or usually used for writing paper, write tools, card, several printing documents, and the size of a paper that related to the envelope.
The A Series Paper Sizes Standard is defined by divided by 2 or half the size of the previous paper in a larger dimension. While the most often used paper is A4 size, usually used for writing paper, cards, printing documents, envelopes, and also in applications such as Microsoft Office like Word or Excel.
- A0
- A1
- A2
- A3
- A4
- A5
- A6
- A7
- A8
- A9
- A10
## A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10
| Paper Sizes |
| ----------- |
| Size | mm | cm | inch |
| A0 | 841 x 1189 | 84.1 x 118.9 | 33.11 x 46.81 |
| A1 | 594 x 841 | 59.4 x 84.1 | 23.39 x 33.11 |
| A2 | 420 x 594 | 42.0 x 59.4 | 16.54 x 23.39 |
| A3 | 297 x 420 | 29.7 x 42.0 | 11.69 x 16.54 |
| A4 | 210 x 297 | 21.0 x 29.7 | 8.27 x 11.69 |
| A5 | 148 x 210 | 14.8 x 21.0 | 5.83 x 8.27 |
| A6 | 105 x 148 | 10.5 x 14.8 | 4.13 x 5.83 |
| A7 | 74 x 105 | 7.4 x 10.5 | 2.91 x 4.13 |
| A8 | 52 x 74 | 5.2 x 7.4 | 2.05 x 2.91 |
| A9 | 37 x 52 | 3.7 x 5.2 | 1.46 x 2.05 |
| A10 | 26 x 37 | 2.6 x 3.7 | 1.02 x 1.46 |
### A0 Paper Size
The dimension of **A0 Paper Sizes in mm, cm, inch:**
- A0 Size in mm is 841 x 1189 millimeter.
- A0 Size in cm is 84.1 x 118.9 centimeter.
- A0 Size in inch is 33.11 x 46.81 inches.
### A1 Paper Size
The dimension of **A1 Paper Sizes in mm, cm, inch:**
- A1 Size in mm is 594 x 841 millimeter.
- A1 Size in cm is 59.4 x 84.1 centimeter.
- A1 Size in inch is 23.39 x 33.11 inches.
### A2 Paper Size
The dimension of **A2 Paper Sizes in mm, cm, inch:**
- A2 Size in mm is 420 x 594 millimeter.
- A2 Size in cm is 42.0 x 59.4 centimeter.
- A2 Size in inch is 16.54 x 23.39 inches.
### A3 Paper Size
The dimension of **A3 Paper Sizes in mm, cm, inch:**
- A3 Size in mm is 297 x 420 millimeter.
- A3 Size in cm is 29.7 x 42.0 centimeter.
- A3 Size in inch is 11.69 x 16.54 inches.
### A4 Paper Size
The dimension of **A4 Paper Sizes in mm, cm, inch:**
- A4 Size in mm is 210 x 297 millimeter.
- A4 Size in cm is 21.0 x 29.7 centimeter.
- A4 Size in inch is 8.27 x 11.69 inches.
### A5 Paper Size
The dimension of **A5 Paper Sizes in mm, cm, inch:**
- A5 Size in mm is 148 x 210 millimeter.
- A5 Size in cm is 14.8 x 21.0 centimeter.
- A5 Size in inch is 5.83 x 8.27 inches.
### A6 Paper Size
The dimension of **A6 Paper Sizes in mm, cm, inch:**
- A6 Size in mm is 105 x 148 millimeter.
- A6 Size in cm is 10.5 x 14.8 centimeter.
- A6 Size in inch is 4.13 x 5.83 inches.
### A7 Paper Size
The dimension of **A7 Paper Sizes in mm, cm, inch:**
- A7 Size in mm is 74 x 105 millimeter.
- A7 Size in cm is 7.4 x 10.5 centimeter.
- A7 Size in inch is 2.91 x 4.13 inches.
### A8 Paper Size
The dimension of **A8 Paper Sizes in mm, cm, inch:**
- A8 Size in mm is 52 x 74 millimeter.
- A8 Size in cm is 5.2 x 7.4 centimeter.
- A8 Size in inch is 2.05 x 2.91 inches.
### A9 Paper Size
The dimension of **A9 Paper Sizes in mm, cm, inch:**
- A9 Size in mm is 37 x 52 millimeter.
- A9 Size in cm is 3.7 x 5.2 centimeter.
- A9 Size in inch is 1.46 x 2.05 inches.
### A10 Paper Sizes
The dimensions of **A10 Sizes in mm, cm, inch:**
- A10 Size in mm is 26 x 37 millimeter.
- A10 Size in cm is 2.6 x 3.7 centimeter.
- A10 Size in inch is 1.02 x 1.46 inches.
#### Tolerances
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.