wei2tools. In your browser
← All tools

Pixels to paper.

Print Size Calculator

Convert image pixels and a chosen PPI into print dimensions in inches, centimeters, or millimeters without changing the image.

Find a physical print size from the pixels you already have.

Try a resolution

This calculator does not resize or modify an image.

YOUR PRINT DIMENSIONS

HOW IT WORKS

01

Enter the image width and height in pixels.

02

Choose a pixels-per-inch value for the calculation.

03

Read the matching physical size in inches, centimeters, and millimeters.

How large will these pixels print?

Divide each pixel dimension by the selected PPI to get inches. A 3,600 × 2,400 image at 300 PPI corresponds to 12 × 8 inches, or 30.48 × 20.32 centimeters. At 240 PPI, the same pixels correspond to 15 × 10 inches.

This calculator preserves the image’s proportions. It does not choose a paper size, add borders, crop the photo, or change the file. Use Print prep when you already have a particular frame or finished size in mind.

A planning value, not a quality certificate

Choose the PPI with your print provider and viewing distance in mind. 300 PPI is a useful starting point for many small photo prints, but it is not a universal requirement or a guarantee that a source image will look sharp.

Inspect the original image as well. A screenshot of a blurred photo can have plenty of pixels and still contain little useful detail. Printer settings may also resize the output, so confirm the final dimensions before printing.

A FEW HELPFUL ANSWERS

Before you get started.

What is the formula?

Width in inches = pixel width ÷ PPI. Height in inches = pixel height ÷ PPI. Multiply inches by 2.54 for centimeters or 25.4 for millimeters.

Why does a lower PPI show a larger print?

The same pixels are spread across more inches. The file has not gained detail; the pixel density is lower.

I know the print size but not the PPI. Which tool should I use?

Use the PPI calculator. It works in the other direction: existing pixels and a chosen physical size produce an effective pixels-per-inch value.

Feedback