Paper Size Reference Guide

Choose the right page size before printing graph paper, dot paper, lined paper, worksheets, technical drawings, or classroom templates.

A ISO A Series

International standard sizes used in most countries.

A4

210 x 297 mm
8.27 x 11.69 in

home printing, school worksheets, everyday graph paper

A3

297 x 420 mm
11.69 x 16.54 in

larger diagrams, classroom handouts, presentation sheets

A2

420 x 594 mm
16.54 x 23.39 in

large technical drawings, posters, wall charts

US US Standard

Common paper sizes for North America.

Letter

215.9 x 279.4 mm
8.5 x 11 in

US worksheets, office printing, notebooks

Legal

215.9 x 355.6 mm
8.5 x 14 in

longer forms, extended plots, legal documents

Tabloid

279.4 x 431.8 mm
11 x 17 in

engineering diagrams, charts, wide-format layouts

XL Large Format

Oversized paper for displays and larger drawings.

Poster

457.2 x 609.6 mm
18 x 24 in

presentations, large displays, classroom demonstrations

Visual Size Comparison

The blocks below show the relative feel of common portrait paper sizes. Use landscape orientation when you need wider plotting space for graphs, charts, or long data series.

A4
Letter
Legal
A3
Tabloid
A2
Poster

Home and Office Printing

A4 / Letter

Standard graph paper, dot paper, lined paper, homework, notes, and everyday printing.

Legal

Longer worksheets, extended plots, forms, and documents that need more vertical room.

A3 / Tabloid

Charts, classroom handouts, presentation sheets, and diagrams that need more space.

Professional and Classroom Use

A2

Technical drawings, larger geometry work, posters, and classroom displays.

Poster

Large displays, wall charts, demonstrations, and presentation boards.

Tabloid

Engineering diagrams, design layouts, and wide-format office printing.