ISO A series

A2 paper size

A2 measures 420 x 594 mm (16.54 x 23.39 in). Posters, art prints, drawing pads, large calendars.

420 x 594millimetres

16.54 x 23.39inches

4,961 x 7,016pixels @ 300 dpi

Dimensions in every unit

Unit	Width x height
Millimetres	420 x 594 mm
Centimetres	42 x 59.4 cm
Inches (decimal)	16.535 x 23.386 in
Inches (fraction)	16 9/16 x 23 3/8 in
Points (1/72 in)	1190.6 x 1683.8 pt
Picas	99.21 x 140.31 pc

Pixel dimensions by resolution

Resolution	Pixels	Megapixels
72 dpi	1,191 x 1,684 px	2 MP
96 dpi	1,587 x 2,245 px	3.6 MP
150 dpi	2,480 x 3,508 px	8.7 MP
200 dpi	3,307 x 4,677 px	15.5 MP
300 dpi	4,961 x 7,016 px	34.8 MP
600 dpi	9,921 x 14,031 px	139.2 MP

300 dpi is the usual target for printed photos and artwork; 72–96 dpi is screen resolution.

Document size with bleed

Bleed	Millimetres	Inches
3 mm bleed (each side)	426 x 600 mm	16.772 x 23.622 in
0.125 in bleed (each side)	426.4 x 600.4 mm	16.785 x 23.636 in

How many A2 fit on a press sheet

Sheet	Without bleed	With 3 mm bleed
B2 (offset)	1-up	1-up
B1 (offset)	2-up	2-up

Simple grid imposition with no gutters or gripper margin; real layouts may fit fewer.

Envelopes for A2

Fold	Folded size	Envelopes that fit
Unfolded	420 x 594 mm	C2 envelope
Folded in half	297 x 420 mm	C3 envelope

The √2 system

A2 has an aspect ratio of 1 : 1.4143 — close to √2 (1.4142). Folding or cutting it in half across the long side produces the next smaller size in the series with the same proportions, and two sheets side by side form the next larger size. This is why scaling between sizes in the series (for example on a photocopier) never crops or distorts the page.

Frequently asked questions

What are the dimensions of A2?

A2 is 420 x 594 mm, which is 16.54 x 23.39 in (16 9/16 x 23 3/8 in).

How many pixels is A2 at 300 DPI?

4,961 x 7,016 pixels at 300 dpi, or 2,480 x 3,508 at 150 dpi.

Sources & data

Dimensions per the relevant standard; see sources.