IT/EN

A guide to required file sizes for printing out photos:

 

Image size Pixels

(Virtual Size of Scans)

Megapixel

rating

Print size (inches)

at 200ppi

Print size (inches)

at 300ppi

Print size (Cm)

 

640 x 480

0.3

3.2 x 2.4

2.1 x 1.6

5.33 x 4.06

1,024 x 768

0.8

5.1 x 3.8

3.4 x 2.5

8.63 x 6.35

1,280 x 960

1.5

7.5 x 5.0

5.0 x 3.3

12.7 x 8.38

1,504 x 1,000

1.5

7.5 x 5.0

5.0 x 3.3

12.7 x 8.38

1,632 x 1,224

2.0

3.3 x 6.1

5.4 x 4.1

13.71 x 10.41

2,000 x 1,312

2.6

10.0 x 6.6

6.7 x 4.4

17.01 x 11.17

2,240 x 1,488

3.3

11.2 x 7.4

7.5 x 5.0

19.05 x 12.7

2,275 x 1,520

3.5

11.4 x 7.6

7.6 x 5.1

19.30 x 12.95

2,272 x 1,704

3.9

11.4 x 8.5

7.6 x 5.7

19.30 x 14.47

2,590 x 1,920

5.0

13.0 x 9.6

8.6 x 6.4

21.84 x 16.25

3,008 x 2,000

6.0

15.0 x 10.0

10.0 x 6.7

25.4 x 17.01

4,256 x 2,848

12.1

21.3 x 14.2

14.2 x 9.5

36 x 24.13

4,536 x 3,024

13.7

22.7 x 15.1

15.1 x 10.1

38.35 x 25.65

5,782 x 3,946

22.8

28.9 x 19.7

19.3 x 13.2

49 x 33.52

 

 

Professional/online printing

Some professional services specify lower resolutions for image sizes, so you could get away with smaller image sizes.

Kodak, for example, suggests these resolution/file sizes:

  • For a 4″ x 6″ print, the image resolution should be 640 x 480 pixels minimum.
  • For a 5″ x 7″ print, the image resolution should be 1024 x 768 pixels minimum.
  • For an 8″ x 10″ print, the image resolution should be 1536 x 1024 pixels minimum.
  • For a 16″ x 20″ print, the image resolution should be 1600 x 1200 pixels minimum.
  • For a 20″ x 30″ print, the image resolution should be 1600 x 1200 pixels minimum.
  • For a Wallet-size print, the image resolution should be 320 x 240 pixels minimum.
 

Quality vs file size

This guide shows you the kind of quality you can expect when you’re printing out your photos.

 

Capture Resolution

Video Display

Print Size

2×3″

4×5″/4×6″

5×7″

8×10″

11×14″

16×20″

20×30″

320×240

OK

Good

OK

Crap

Crap

Crap

Crap

Crap

640×480
0.3Megapixel

Good

Excellent

Good

Crap

Crap

Crap

Crap

Crap

800×600

Excellent

Photo Quality

Very Good

Reasonable

Crap

Crap

Crap

Crap

1024×768

Excellent

Photo Quality

Excellent

Good

OK

Crap

Crap

Crap

1280×960
1 MP

Excellent

Photo Quality

Photo Quality

Very Good

Good

Crap

Crap

Crap

1536×1180

Excellent

Photo Quality

Photo Quality

Excellent

Very Good

OK

Crap

Crap

1600×1200
2MP

Excellent

Photo Quality

Photo Quality

Photo Quality

Very Good

OK

OK

Crap

2048×1536
3 Megapixel

Excellent

Photo Quality

Photo Quality

Photo Quality

Excellent

Good

OK

OK

2240×1680
4 Megapixel

Excellent

Photo Quality

Photo Quality

Photo Quality

Photo Quality

Very Good

Good

OK

2560×1920
5 Megapixel

Excellent

Photo Quality

Photo Quality

Photo Quality

Photo Quality

Excellent

Very Good

Very Good

3032×2008
6 Megapixel

Excellent

Photo Quality

Photo Quality

Photo Quality

Photo Quality

Photo Quality

Excellent

Very Good

3072×2304
7 Megapixel

Excellent

Photo Quality

Photo Quality

Photo Quality

Photo Quality

Photo Quality

Excellent

Excellent

3264×2448
8 Megapixel

Excellent

Photo Quality

Photo Quality

Photo Quality

Photo Quality

Photo Quality

Photo Quality

Excellent

10 Megapixel +

Excellent

Photo Quality

Photo Quality

Photo Quality

Photo Quality

Photo Quality

Photo Quality

Photo Quality

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