How to work out an image's print size
- Choose what to work out.
- Enter your pixels, print size or DPI.
- Read the answer and the paper table.
About this tool
Will that photo print sharply on A3? Enter its pixels and a DPI to see the print size in cm, mm and inches, or start from a size to get the pixels you need. A table rates your image on each common paper size.
Common questions
What DPI do I need for printing?
300 DPI is the usual aim for photos you hold in your hand. 200 still looks good, and large posters seen from a few steps away can go lower.
How is print size calculated?
Divide pixels by DPI to get inches. For example, 3000 pixels at 300 DPI is 10 inches, which is 25.4 cm.
How many pixels does A4 need at 300 DPI?
2480 × 3508 pixels, which is 8.7 megapixels.
Is it free to use?
Yes. There's no sign-up, and you can use it as often as you like.
Is my text uploaded anywhere?
No. This tool runs inside your browser, so what you enter stays on your device.
Do I need to install anything?
No. It works in your browser on a computer or a phone.