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Print Size Calculator

Enter the image size in pixels and a resolution to see the largest print, and which paper sizes your image can fill.

The formula

Print width (inches) = pixel width ÷ PPI. Multiply by 25.4 for millimetres. Pixels needed = print width in inches × PPI.

FAQ

How many pixels do I need for an 8 × 10 inch print?
At 300 PPI: 2400 × 3000 pixels. At 150 PPI (viewed from further away): 1200 × 1500 pixels.
Is PPI the same as DPI?
People often use them interchangeably. Strictly, PPI is pixels in the image; DPI is ink dots the printer lays down. For sizing a print, PPI is the number that matters.

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