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Convert pixels to inches based on screen PPI. This free two-way converter (px to in and in to px) is perfect for graphic design, printing, and front-end web development.
Overview
Understand what the tool solves, how it works, and the boundaries of its data.
A pixel count describes image dimensions, while inches describe physical length. The same 1200-pixel image can be assigned different physical widths depending on its pixel density. This converter uses the DPI value you enter to estimate that physical size; it starts at 96 DPI. The value is a conversion setting, not a measurement automatically detected from your monitor or printer.
Inches = pixels ÷ DPI
Pixels = inches × DPI
For example, at 300 DPI, 1200 pixels ÷ 300 pixels per inch = 4 inches. At the default 96 DPI, the same 1200 pixels converts to 12.5 inches. The CSS specification separately defines relationships among CSS absolute units; a CSS pixel is not a guarantee of a physical screen pixel or a print’s actual measured density.
Use the density associated with the image’s intended output or document settings. For a print estimate, use the output resolution you plan to use; for an existing image, check its metadata or the application’s size/resolution settings. Changing DPI while holding pixel dimensions constant changes the calculated inch size.
The converter works in both directions: edit the pixel value to see inches, or edit inches to calculate pixels. It displays the result rounded to at most four decimal places, so the shown value may be a rounded representation of the internal calculation.
Guide
Follow the workflow and verify inputs and outputs with practical examples.
Type the width or height in pixels. Convert each dimension separately if you need both sides of an image.
Keep 96 for a calculation at that density, or replace it with the density relevant to your print or image workflow.
The inches field updates from pixels. You can instead enter an inch measurement, and the pixel value is calculated using the same DPI setting.
Reset returns the pixel field to 16 and DPI to 96. The displayed conversion is rounded to four decimal places at most.
Example: enter 2550 pixels and 300 DPI to get 8.5 inches. Reverse the calculation: 8.5 inches × 300 DPI = 2550 pixels.
Use cases
See how the tool fits into real work and everyday tasks.
Take the graphic’s pixel width and divide by the print workflow’s intended DPI to estimate its width in inches before laying out the page.
Enter the desired width in inches and a planned DPI to calculate the corresponding pixel count for a design or export setting.
Q&A
Find concise answers to common questions and confusing cases.
No. It is the converter’s starting value. Choose the density relevant to the output you are estimating; a different DPI produces a different physical size for the same pixel count.
Not reliably. Physical display size depends on the display and scaling environment. The calculation only applies the entered pixels-per-inch value to the pixel count.
The reverse formula is pixels = inches × DPI. Editing either side recalculates the other using the current density.
Notes
Review scope, result limitations, and important precautions before use.
The converter does not inspect an image file, printer, or display, and it cannot establish the actual physical output size by itself. Use the DPI setting that matches your intended workflow, then confirm final dimensions in the application or print settings that control the output.
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