A2 at 300 DPI in pixels: 4961 × 7016

A2 at 300 DPI is 4961 × 7016 pixels

A2 (420 × 594 mm) at 300 DPI is 4961 × 7016 pixels, which is 35 megapixels.

Portrait	4961 × 7016 pixels
Landscape	7016 × 4961 pixels
With 3 mm bleed	5031 × 7087 pixels
Megapixels	35
Aspect ratio	1.41:1 (1 to √2 before rounding)
File size	100 MB as uncompressed 8-bit RGB; a JPEG or PNG is smaller
Paper size	420 × 594 mm (16.54 × 23.39 in)

Portrait

4961 × 7016 pixels

Landscape

7016 × 4961 pixels

With 3 mm bleed

5031 × 7087 pixels

Megapixels

Aspect ratio

1.41:1 (1 to √2 before rounding)

File size

100 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 × 300 = 4,960.6, which rounds to 4961 pixels.
Height: 594 mm ÷ 25.4 = 23.386 in; 23.386 in × 300 = 7,015.7, which rounds to 7016 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 5031 × 7087 pixels.

Is your photo big enough?

To fill A2 at 300 DPI an image needs at least 4961 × 7016 pixels. Cropped to fill the sheet:

A 12 megapixel phone photo (4000 × 3000) gives 171 DPI: short of 300, so it would be upscaled or printed softer.
A 24 megapixel camera photo (6000 × 4000) gives 242 DPI: short of 300, so it would be upscaled or printed softer.
A 48 megapixel photo (8000 × 6000) gives 342 DPI: enough.

At 300 DPI the pixels of a print blend together from about 11.5 inches (29 cm) away. 300 DPI is the standard for print that is held in the hand: books, magazines, photo prints, business cards and flyers. At reading distance the eye can no longer pick out the pixels.

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 300 DPI.

A2 at 300 DPI is 4961 × 7016 pixels

The working

Is your photo big enough?

A2 at other resolutions

Other sizes at 300 DPI