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DPI Calculator

Quick answer: DPI = pixels ÷ print size in inches. A 3000 px wide photo printed 10 inches wide is 300 DPI, the standard for sharp prints.

About the DPI Calculator

DPI calculator: find the print DPI of an image from its pixels and print size, or the pixels you need. Free.

300 DPI is the usual target for photos, 150 DPI is fine for posters viewed from a distance.

Everything is calculated or processed in your browser, so nothing is uploaded.

How to use it

  1. 1Enter the numbers you know.
  2. 2The answer updates as you type.
  3. 3Copy the result.

Why use this tool

Private by design

Your files are processed on your device and never uploaded.

Free, no signup

No account, no watermark and no daily limit.

Instant

Results update as you change settings, with no waiting for a server.

Works on phone and desktop

A responsive layout that fits any screen.

Frequently asked questions

What DPI do I need to print?

300 DPI for photos and documents, 150 DPI for large posters, 72–96 for screens.

Are my images uploaded to a server?

No. PixTools processes images locally in your browser using your device. Your files are not uploaded or stored.

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