DPI Calculator

Calculate resolution, DPI, print size, and more for printing and artwork.

Resolution Calculator

Width (px)

Height (px)

Diagonal (in)

DPI:

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Print Size Calculator

Width (px)

Height (px)

DPI

Inches

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DPI Guidelines:

Screen: 72–96 DPI
Print (standard): 300 DPI
Print (high quality): 600+ DPI
Book covers: 300 DPI minimum

This DPI calculator helps clarify how pixel dimensions translate into physical size and visual clarity. It’s useful whenever you need to understand how an image will appear on a screen or how sharply it will print on paper.

By working directly with pixel counts, physical dimensions, and resolution values, the calculator makes the relationship between these elements explicit. This can be especially helpful when moving between digital layouts and print output, where assumptions about size and quality often lead to surprises.

When DPI Matters

DPI becomes relevant whenever a file leaves its original context. An image that looks fine on screen may not hold up in print, and a design prepared for print may be unnecessarily large for digital use. Checking the effective resolution early helps avoid both outcomes.

Print preparation: Verify whether an image meets common print standards, such as 300 DPI, before exporting or sending files.
Displays and monitors: Calculate pixel density based on screen size to better understand how sharp content will appear.
Resizing workflows: When dimensions need to change, combining DPI checks with a scale dimensions calculator keeps results predictable.

How the Calculator Works

The tool offers two complementary modes, depending on whether you’re starting from screen measurements or print requirements:

Screen resolution mode: Enter pixel width and height along with the diagonal size to calculate display density.
Print size mode: Enter pixel dimensions and a target DPI to see the resulting physical size in inches and centimeters.

Since DPI is inseparable from pixel count, it often helps to verify your numbers alongside a pixel size converter. Together, these tools make it easier to move between screen-focused and print-focused work without relying on guesswork.

All calculations run instantly in your browser, with no uploads or downloads required. The goal is simply to make resolution constraints visible, so decisions about quality and size can be made with confidence rather than trial and error.