A4 Paper Size

A4 Paper Size Dimensions

210 × 297 mm

A4 paper measures 210 × 297 millimeters.

A4 Paper Size Diagram

210 mm
297 mm
A4

What Size Is A4 Paper?

A4 paper measures 210 × 297 mm, which is 21 × 29.7 cm or approximately 8.27 × 11.69 inches. A4 is the most widely used ISO 216 paper size for letters, documents, printing, and everyday office work.

A4 Paper Size Dimensions & Conversions

Paper Series A Series
Standard ISO 216
Width 210 mm
Height 297 mm
Area 0.0625 m²
Aspect Ratio 1:√2
Previous Size A3
Next Size A5

A4 Dimensions in Different Units

Unit Width Height
Millimeters 210 mm 297 mm
Centimeters 21 cm 29.7 cm
Inches 8.27 in 11.69 in
Feet 0.69 ft 0.97 ft
Meters 0.21 m 0.297 m
Points 595 pt 842 pt
Picas 49.6 pc 70.2 pc

What Is A4 Paper Used For?

Letters

A4 is widely used for personal and business letters.

Office Documents

Most everyday documents are printed on A4 paper.

Reports

A4 is commonly used for reports, forms, and professional documents.

Printing

Printers and copiers commonly support A4 paper as a standard size.

Related A Series Paper Sizes

Frequently Asked Questions

A4 paper measures approximately 8.27 × 11.69 inches.
A4 measures 21 × 29.7 cm.
A4 measures 210 × 297 mm.
Yes. A4 is twice the area of A5.

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