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Paper Size Converter

See every standard paper size, A4, Letter, A3 and more, in mm, inches, points and pixels at any DPI. Free.

SizeMillimetersInchesPixels at 300 DPI
A0841 × 118933.11 × 46.819933 × 14043
A1594 × 84123.39 × 33.117016 × 9933
A2420 × 59416.54 × 23.394961 × 7016
A3297 × 42011.69 × 16.543508 × 4961
A4210 × 2978.27 × 11.692480 × 3508
A5148 × 2105.83 × 8.271748 × 2480
A6105 × 1484.13 × 5.831240 × 1748
A774 × 1052.91 × 4.13874 × 1240
A852 × 742.05 × 2.91614 × 874
A937 × 521.46 × 2.05437 × 614
A1026 × 371.02 × 1.46307 × 437
Show sizes in

Convert a size

cm
21 × 29.7
in
8.27 × 11.69
pt
595 × 842
px (300 DPI)
2480 × 3508
Standard size
A4

Paper Size Converter lists the standard paper sizes, ISO A, B and C, US sizes such as Letter, Legal and Tabloid, photo prints, envelopes and Japanese JIS sizes, in millimeters, centimeters, inches, points or pixels. Set the DPI to see how many pixels a page needs for printing, for example 2480 × 3508 for A4 at 300 DPI. Enter any width and height to convert it and find the nearest standard size.

How to use Paper Size Converter

  1. 1

    Choose a group

    A sizes, US, B, C, photo, envelope or JIS sizes.

  2. 2

    Pick the unit

    mm, cm, inches, points or pixels, with your DPI.

  3. 3

    Convert any size

    Enter a width and height to convert it and find the nearest standard size.

What it does

Every common size
ISO A, B and C, US, photo, envelope and JIS sizes.
Pixels for printing
Pixel sizes at the DPI you choose.
Nearest standard
Find which paper a size is closest to.

Questions

How many pixels is A4?

At 300 DPI, A4 is 2480 × 3508 pixels; at 150 DPI it's 1240 × 1754.

What's the difference between A4 and Letter?

A4 (210 × 297 mm) is used in most of the world; Letter (8.5 × 11 in, 216 × 279 mm) in the US and Canada. A4 is narrower and taller.

Why are ISO sizes rounded?

The standard defines them in whole millimeters, each half of the size above it.

Does it need an internet connection?

Only to open the page. Everything is calculated on your device, and nothing you type is sent anywhere.