4×6 print size in pixels

A 4×6 print (4 × 6 in, or 10.2 × 15.2 cm) needs 1,200 × 1,800 pixels at 300 DPI. That is about 2.2 megapixels.

Resolution	Pixels needed	Good for
600 DPI	2,400 × 3,600 px	Line art, text and scans
300 DPI	1,200 × 1,800 px	Photos and print shops (standard)
240 DPI	960 × 1,440 px	Photo labs and inkjet printers
150 DPI	600 × 900 px	Posters seen from a distance
72 DPI	288 × 432 px	Screens only, too low for print

Resize your image to 4×6

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What is the 4×6 size used for?

This size is common for the standard photo print. For prints viewed up close, 300 DPI is the safe choice that most print shops ask for. Photo labs are usually happy with 240 DPI, and large prints seen from a few steps away look fine at 150 DPI.

Is my image big enough?

Drop it in the tool above: it shows the real resolution your photo will have at this size. You can also use the DPI checker. If it has at least 960 × 1,440 pixels, it will print well at this size. If it is smaller, you can still print it, but it will look softer; enlarging it in software does not add real detail.

Already have the right pixels? Set the file to 300 DPI without resizing, so the print shop sees the right size when they open it.