Print Size Calculator

How big your photo prints sharp.

FREE · NO SIGN-UP · RUNS ON YOUR DEVICE

Your image never leaves the device

Specification

Print Size Calculator at a glance

How to

Questions

About thirteen by ten inches at three hundred dots per inch. The table shows what the same file gives at the other quality levels.

No. It suits prints held in the hand. A poster read from across a room looks fine at one fifty, which doubles the size you can print.

Nothing is opened or altered. The panel works from the pixel numbers you type, and no file is involved at all.

Width and height are worked out separately, so if the ratio differs from the paper you will need to crop or leave a border.

Background

Enter the width and height in pixels and read the print size at each quality level. Or work the other way and find the pixels a given print needs.

Dots per inch only means something next to a print size, because it is pixels divided by inches.
The further away a print is read from, the fewer dots per inch it needs to look sharp.
Enlarging a file in software adds pixels but not detail, so the sharp limit does not move.
Cropping before printing lowers the pixel count, so check the size after the crop rather than before.

Specification of the Print Size Calculator tool
Directions	Largest sharp print from a pixel size, or pixels needed for a print size.
Quality levels	One fifty for posters, two hundred for snapshots, three hundred standard, six hundred for fine art.
Units	Inches and centimetres, both shown together.
Megapixels	Shown alongside, so a camera spec can be checked against a print.
Comparison table	The largest print at each of the four quality levels, side by side.
Price	Free. Supported by clearly labelled ads placed outside the working area.
Account required	No.
Where it runs	In your browser tab. Nothing is sent anywhere.

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