A2 at 150 DPI in pixels: 2480 × 3508

A2 at 150 DPI is 2480 × 3508 pixels

A2 (420 × 594 mm) at 150 DPI is 2480 × 3508 pixels, which is 8.7 megapixels.

Portrait	2480 × 3508 pixels
Landscape	3508 × 2480 pixels
With 3 mm bleed	2516 × 3543 pixels
Megapixels	8.7
Aspect ratio	1.41:1 (1 to √2 before rounding)
File size	25 MB as uncompressed 8-bit RGB; a JPEG or PNG is smaller
Paper size	420 × 594 mm (16.54 × 23.39 in)

Portrait

2480 × 3508 pixels

Landscape

3508 × 2480 pixels

With 3 mm bleed

2516 × 3543 pixels

Megapixels

8.7

Aspect ratio

1.41:1 (1 to √2 before rounding)

File size

25 MB as uncompressed 8-bit RGB; a JPEG or PNG is smaller

Paper size

420 × 594 mm (16.54 × 23.39 in)

The working

Pixels are inches multiplied by the resolution, and an inch is 25.4 mm.

Width: 420 mm ÷ 25.4 = 16.535 in; 16.535 in × 150 = 2,480.3, which rounds to 2480 pixels.
Height: 594 mm ÷ 25.4 = 23.386 in; 23.386 in × 150 = 3,507.9, which rounds to 3508 pixels.

Bleed is extra image past the trim line, so that a cut that lands slightly off still leaves ink to the edge. Print shops usually ask for 3 mm on every side of an A-series page, which makes the file 2516 × 3543 pixels.

Is your photo big enough?

To fill A2 at 150 DPI an image needs at least 2480 × 3508 pixels. Cropped to fill the sheet:

A 12 megapixel phone photo (4000 × 3000) gives 171 DPI: enough.
A 24 megapixel camera photo (6000 × 4000) gives 242 DPI: enough.
A 48 megapixel photo (8000 × 6000) gives 342 DPI: enough.

At 150 DPI the pixels of a print blend together from about 22.9 inches (58 cm) away. 150 DPI is a common minimum for posters and large prints seen from a step or two away, and a usual setting for scanning documents that only need to be read.

A2 at other resolutions

Resolution	Pixels	With bleed	Megapixels	Uncompressed
72 DPI	1191 × 1684	1208 × 1701	2	5.7 MB
96 DPI	1587 × 2245	1610 × 2268	3.6	10 MB
100 DPI	1654 × 2339	1677 × 2362	3.9	11 MB
150 DPI	2480 × 3508	2516 × 3543	8.7	25 MB
200 DPI	3307 × 4677	3354 × 4724	15	44 MB
240 DPI	3969 × 5613	4025 × 5669	22	64 MB
300 DPI	4961 × 7016	5031 × 7087	35	100 MB
400 DPI	6614 × 9354	6709 × 9449	62	177 MB
600 DPI	9921 × 14031	10063 × 14173	139	398 MB
1200 DPI	19843 × 28063	20126 × 28346	557	1.56 GB

A2 is a mid-size poster and art-print sheet, four times the area of A4. See A2 in pixels at every resolution or everything at 150 DPI.

A2 at 150 DPI is 2480 × 3508 pixels

The working

Is your photo big enough?

A2 at other resolutions

Other sizes at 150 DPI