Aspect Ratio Calculator
Find the missing width or height for any ratio, or the ratio of any size.
DPI & Print Size Calculator
Convert pixels to print size in inches and cm at any DPI, and back.
Runs in your browser. Your images are never uploaded.
How to use the DPI & Print Size Calculator
Find out how large you can print a photo and still keep it sharp, or how many pixels you need for a print size. Enter pixels or drop in an image, choose the DPI, and get the answer in inches and centimetres with a quality rating.
- Enter the pixel sizeOr drop an image to fill it in automatically.
- Choose the DPI300 for close-up prints, 150 for posters seen from further away.
- Read the print sizeShown in inches and centimetres, with a quality hint.
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Precise cutouts of complex objects for print, packaging and high-end catalogues.
DPI & Print Size Calculator questions
Everything you need to know before sending your first images. Still unsure? Ask us anything.
Does changing DPI change my image?
No. DPI only tells the printer how densely to place the pixels. The number of pixels decides how large you can print.
What DPI do printers want?
300 DPI is the standard for photos, flyers and catalogues. Large banners viewed from a distance are often printed at 100–150 DPI.
Is this tool free?
Yes, completely. There is no sign-up, no watermark and no usage limit.
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Ready to make your photos sell?
Send a few images and tell us what you need. You get an exact price and delivery time within one business day, with no obligation.