A6 at 300 DPI in pixels: 1240 × 1748

A6 at 300 DPI is 1240 × 1748 pixels

A6 (105 × 148 mm) at 300 DPI is 1240 × 1748 pixels, which is 2.2 megapixels.

Portrait	1240 × 1748 pixels
Landscape	1748 × 1240 pixels
With 3 mm bleed	1311 × 1819 pixels
Megapixels	2.2
Aspect ratio	1.41:1 (1 to √2 before rounding)
File size	6.2 MB as uncompressed 8-bit RGB; a JPEG or PNG is smaller
Paper size	105 × 148 mm (4.13 × 5.83 in)

Portrait

1240 × 1748 pixels

Landscape

1748 × 1240 pixels

With 3 mm bleed

1311 × 1819 pixels

Megapixels

2.2

Aspect ratio

1.41:1 (1 to √2 before rounding)

File size

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

Paper size

105 × 148 mm (4.13 × 5.83 in)

The working

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

Width: 105 mm ÷ 25.4 = 4.134 in; 4.134 in × 300 = 1,240.2, which rounds to 1240 pixels.
Height: 148 mm ÷ 25.4 = 5.827 in; 5.827 in × 300 = 1,748, which rounds to 1748 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 1311 × 1819 pixels.

Is your photo big enough?

To fill A6 at 300 DPI an image needs at least 1240 × 1748 pixels. Cropped to fill the sheet:

A 12 megapixel phone photo (4000 × 3000) gives 686 DPI: enough.
A 24 megapixel camera photo (6000 × 4000) gives 968 DPI: enough.
A 48 megapixel photo (8000 × 6000) gives 1,373 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.

A6 at other resolutions

Resolution	Pixels	With bleed	Megapixels	Uncompressed
72 DPI	298 × 420	315 × 437	0.13	367 KB
96 DPI	397 × 559	420 × 582	0.22	650 KB
100 DPI	413 × 583	437 × 606	0.24	705 KB
150 DPI	620 × 874	656 × 909	0.54	1.6 MB
200 DPI	827 × 1165	874 × 1213	0.96	2.8 MB
240 DPI	992 × 1398	1049 × 1455	1.4	4 MB
300 DPI	1240 × 1748	1311 × 1819	2.2	6.2 MB
400 DPI	1654 × 2331	1748 × 2425	3.9	11 MB
600 DPI	2480 × 3496	2622 × 3638	8.7	25 MB
1200 DPI	4961 × 6992	5244 × 7276	35	99 MB

A6 is a quarter of A4, the size of a postcard. See A6 in pixels at every resolution or everything at 300 DPI.

A6 at 300 DPI is 1240 × 1748 pixels

The working

Is your photo big enough?

A6 at other resolutions

Other sizes at 300 DPI