: How do I calculate image size for print I've got an image 4,200 x 4,200 pixels. I want to have it printed off as the biggest poster size I can get. How do I calculate what the largest

@Michele215

Some initial observations:

You do not read a magazine at 2 m. from you. Lets think that you read it at 30 cm.

But you can see a poster at 60cm, or a bus stop add at 1 or 2 m.
otake.com.mx/Foros/Resolution1.jpg
As you get further away you need less resoluiton on your print.

So the first point is define your viewing distance.

If what you want is a wall mounted image on your room, I say it is arround 100-150 ppi. For me 100ppi is enough, so lets do some math:


4200px/100ppi = 42 inches.
4200px/150ppi = 28 inches.


I would recomend that you print a small fragment of the image on a letter sized paper and then you decide the final resolution.

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