A little precision. A better print.
Know your image’s real print size. Convert, compare, and get the fit right.
10 × 6.667 in
At 300 pixels per inch
3,000 px ÷ 300 PPI = 10 in
Shape preview · not shown at actual size
Pixel count stays the same. Resolution changes the physical size.
| Resolution | Width × height (in) | Width × height (cm) |
|---|
| Print size | Available PPI | Crop | Pixels at export PPI |
|---|
Enter up to 100 sizes, one per line. Use a width alone or a width × height pair.
| Pixels | Inches | Centimeters |
|---|
From a number to something you can hold
A pixel is a piece of an image, not a fixed physical measurement. To turn pixel dimensions into inches, you need to decide how many pixels to place in each inch. That number is the image’s resolution, measured in pixels per inch (PPI).
For each dimension, divide the pixel count by PPI. An image that is 3,000 pixels wide becomes 10 inches wide at 300 PPI, or 20 inches wide at 150 PPI. The image has not gained or lost pixels; you are changing how closely they are packed on the print.
Choose centimeters or millimeters when your print specifications use metric units. One inch is exactly 2.54 centimeters or 25.4 millimeters. The calculator keeps precision internally and rounds the displayed result for readability.
Enter the image width and height, or choose a PNG, JPEG or WebP to read its dimensions on your device. A file’s pixel dimensions tell you what you have to work with. The converter uses the PPI you select; it does not assume a file’s saved resolution is the resolution you want to print.
300 PPI is a common starting target for photographs viewed up close, but it is not a promise of quality. Image sharpness, the printer, paper and viewing distance all matter. Large posters viewed from farther away can have different requirements. Follow your print provider’s guidance.
A 3:2 photograph does not fill a 5:4 frame without cropping. Plan a print shows both approaches: fill the page and trim the edges, or preserve the complete image with borders. Its available PPI calculation uses the pixels that remain after the chosen fit.
A useful small-print dimension.
A 6-megapixel image at the chosen resolution.
A layout-unit relationship, not a measurement of your monitor.
No. Image PPI describes pixels per inch of the image. Printer DPI describes the printer’s dots per inch. A printer may use several ink dots to represent a pixel. This calculator uses image PPI, even when a print brief casually calls it DPI.
That is the defined relationship between CSS units: 1 CSS inch equals 96 CSS pixels. It is useful for web layout. It is not a universal relationship between an image’s pixels and its printed size, and it does not establish the physical size of a screen. Choose the context that matches your task.
Changing the PPI setting alone changes the physical size, not the source detail. Resampling adds or removes pixels. The fitted PNG exporter resamples to the dimensions you request and tells you when the export asks for more pixels than the source provides; upscaling cannot recover detail that was never captured.
Choose an image, open Plan a print, select paper size and fit, then download. The image is processed locally, cropped centrally or placed on a white background, and exported as a PNG with the selected PPI metadata. Export is limited to 16 million pixels and 10,000 pixels per edge to keep memory use reasonable. Check the exported file and disable unwanted scaling in the print dialog.
Yes. Leave height blank. You will still get the width in inches, centimeters and millimeters. Two dimensions are required for aspect-ratio locking, megapixels and print-fitting calculations.
No. Image reading and processing happen in your browser. This app does not upload your selected files, run advertising scripts, or send your calculation inputs to an analytics service. If you enable remembered preferences, only your unit and PPI choices are saved in this browser. The hosting service still processes ordinary network requests needed to deliver the website.
Made for the work in front of you
Pixels to Inches exists to make image sizing clear, practical and free. Our aim is to provide the most useful version of this everyday tool: quick enough for a single conversion, capable enough to compare resolutions, fit a print and prepare an actual file.
There is no account to create and no paid tier hiding the useful controls. We show the assumptions, keep the arithmetic inspectable, and put your task ahead of everything else. Whether you are printing family photographs, preparing artwork or checking a design brief, the goal is the same: fewer guesses and a result you can use.
The unit relationships and explanations are based on W3C CSS Values and Units and Adobe’s guides to printed image resolution and printer resolution. Available PPI is a geometric calculation, not a guarantee of output quality. Print-size comparisons use the same centered crop or contain method as the selected preview.