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Pixels per inch you get: every listed size against five photo sizes

Divide a photo's pixels by the print inches to get pixels per inch (ppi); our standard is 100. A 4000 x 3000 (12 MP) photo meets 100 ppi in 31 of the 34 listed sizes and gives 222 ppi at 12 x 18 inches.

1.9 MP (1600x1200)89 ppi8 MP (3264x2448)181 ppi12 MP (4000x3000)222 ppi24 MP (6000x4000)333 ppi48 MP (8000x6000)444 ppi

Pixels per inch at 12 x 18 inches; the standard is 100.

The full table

Each cell is the pixels per inch when the photo covers the print, in the better of the two orientations (a landscape photo can be turned for a portrait print). A star marks a value below 100 ppi.

Size (in)1600 x 1200 (1.9 MP)3264 x 2448 (8 MP)4000 x 3000 (12 MP)6000 x 4000 (24 MP)8000 x 6000 (48 MP)
4 x 626754466710001333
5 x 72294665718001143
6 x 62004085006671000
6 x 82004085006671000
6 x 10160326400600800
8 x 8150306375500750
8 x 10150306375500750
8.5 x 11141288353471706
8 x 12133272333500667
8.3 x 11.7137279342482684
10 x 10120245300400600
8.5 x 14114233286429571
10 x 12120245300400600
12 x 12100204250333500
11.7 x 16.597*198242342485
12 x 1889*181222333444
16 x 1675*153188250375
12 x 2467*136167250333
16 x 2075*153188250375
16 x 2467*136167250333
20 x 2060*122150200300
18 x 2467*136167222333
15 x 3053*109133200267
20 x 2460*122150200300
20 x 2857*117143200286
24 x 2450*102125167250
20 x 3053*109133200267
18 x 3644*91*111167222
28 x 2843*87*107143214
24 x 3644*91*111167222
30 x 4040*82*100133200
36 x 4833*68*83*111167
40 x 6027*54*67*100133
48 x 6025*51*62*83*125

Download the table (CSV)

How many sizes meet 100 ppi

PhotoListed sizes that meet 100 ppi
1600 x 1200 (1.9 MP)14 of 34
3264 x 2448 (8 MP)27 of 34
4000 x 3000 (12 MP)31 of 34
6000 x 4000 (24 MP)33 of 34
8000 x 6000 (48 MP)34 of 34

The photo is fitted to the print shape, so some of it is cropped: see crop loss calculator. A photo below 100 ppi can still be ordered; the studio shows a friendly note. This is arithmetic on pixel counts and says nothing about any particular camera.

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Related

Sources: Prices, GST rates and sizes: ArtzFolio Custom rate card (our price list file, generated 2026-11-10). 100 pixels per inch: ArtzFolio standard print-file production rules. All other figures are arithmetic shown on this page. Data as of 2026-11-10; page checked 2026-11-12. Always confirm the live price in the studio before ordering.