What is A4 size in inches?

To determine the dimensions of A4 paper in inches, you can use the following conversion formula: 1 millimeter = 0.0393701 inch. The standard A4 paper size is 210 mm x 297 mm. To convert these measurements to inches, multiply the millimeters by 0.0393701.

Converting millimeters to inches:

  • 210 mm × 0.0393701 = 8.26772 inches
  • 297 mm × 0.0393701 = 11.6929 inches

Thus, the dimensions of A4 paper in inches are approximately 8.26772 × 11.6929 inches.

Rounded dimensions:

When rounded to two decimal places, A4 paper measures 8.27 × 11.69 inches.

Converting back to millimeters:

To verify, convert the inches back to millimeters by dividing the values by 0.0393701:

  • 8.26772 inches ÷ 0.0393701 = 210 mm
  • 11.6929 inches ÷ 0.0393701 = 297 mm

This confirms that the A4 paper size in millimeters is indeed 210 × 297 mm.

Use our calculator to perform the calculation effortlessly

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Width & Height in :

Table with A4 size in inches

Size Inches
4A0 66.220 x 93.622
2A0 46.811 x 66.220
A0 33.110 x 46.811
A1 23.386 x 33.110
A2 16.535 x 23.386
A3 11.693 x 16.535
A4 8.268 x 11.693
A5 5.827 x 8.268
A6 4.134 x 5.827
A7 2.913 x 4.134
A8 2.047 x 2.913
A9 1.457 x 2.047
A10 1.024 x 1.457

a4-paper-size-in-inches

American Paper Sizes

American paper sizes are measured in inches, which is the standard used in the United States and other English-speaking countries. In contrast, most of the world adheres to the ISO 216 standard. Common American paper sizes like Letter, Legal, and Ledger are defined using inches.

An inch is a unit of length with the symbol “in” or ″, widely used in English-speaking regions. By definition, one inch is exactly equal to 25.4 mm. This measurement is approximately the width of the upper phalanx of an adult male’s finger.

Other Units

To view A4 dimensions in millimeters or centimeters, visit these pages: A4 size in mm and A4 size in cm.

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