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PX to CM Converter
for Web & Print Design

The most advanced free px to cm converter online. Bidirectional, batch-ready, with DPI presets and live visual preview.

Instant Width + Height Batch 96 · 144 · 300 DPI Preview
PX to CM Converter Tool
DPI
Pixels → CM
Width
Height
⇄
Result in CM
Width
—
Height
—
CM → Pixels
Width
Height
⇄
Result in PX
Width
—
Height
—
cm=(px÷96DPI ) ×2.54
e.g. (1920 ÷ 96) × 2.54 = 50.80 cm
Visual Size Preview
Approximate screen representation — not 1:1 physical size
Input
—
Result
—
DPI
96
Batch Converter

Convert multiple px values at once. One value per line — uses your current DPI setting.

One px value per line
Results appear here...
Quick Reference Table

Common pixel values at the four standard DPI settings used in web and print design.

PX72 DPI96 DPI150 DPI300 DPICommon Use

What Is a PX to CM Converter?

A px to cm converter calculates the physical size in centimeters of any pixel value, based on the screen or print resolution (DPI). Pixels are a digital unit with no fixed physical size — a 100px element looks completely different on a phone screen, a desktop monitor, and a printed page. Converting px to cm tells you exactly how large an element will physically appear at a given resolution.

This px to cm converter is built for web designers, UI/UX designers, print designers, and developers who need to bridge digital measurements with real-world physical dimensions. It supports bidirectional conversion, width and height together, batch input, five DPI presets, and a live visual preview — features no other free converter combines in one tool.

cm = ( px ÷ DPI ) × 2.54
Where 2.54 is the number of centimeters in one inch. Example: 1920px at 96 DPI = (1920 ÷ 96) × 2.54 = 50.80 cm

How to Use This PX to CM Converter

1
Choose your DPI — click a preset (Web 96, Retina 144, Print 300) or type a custom value. Use 96 for screen-based design and 300 for professional print.
2
Enter your pixel value — type the width and/or height in the Pixels panel. The cm result updates live as you type.
3
Copy the result — click the Copy button next to any result to copy it instantly, ready to paste into Photoshop, InDesign, or a CSS file.
4
Use the reverse converter — enter a centimeter value to get the pixel equivalent. Ideal when setting up a Photoshop canvas from a known physical print size.
5
Batch convert — paste multiple px values (one per line) into the batch converter to process a whole list at once.

Understanding DPI — The Key to Accurate PX to CM Conversion

DPI (Dots Per Inch) is the single most important factor in any px to cm conversion. The same pixel count produces a completely different physical size at different DPI values. Using the wrong DPI is the most common mistake designers make when converting px to cm for print projects.

96 DPI
Web / Screen
W3C standard for all browsers and CSS. Use for screen design, UI mockups, and web exports.
72 DPI
Legacy Mac
Historical Apple standard. Still referenced in some legacy design tools and older style guides.
144 DPI
Retina 2×
Apple Retina screens. Use when designing @2x assets for high-density displays.
300 DPI
Professional Print
Industry standard for all high-quality print — business cards, posters, packaging.

When Do You Need to Convert PX to CM?

The px to cm converter is most commonly needed in these real-world design scenarios:

Print Design

Set up correctly-sized Photoshop or Illustrator canvases for physical print jobs.

Document Setup

Create correctly-sized InDesign or Word documents for flyers, brochures, and certificates.

CSS Print Stylesheets

Write accurate print media queries with the correct cm equivalent of your px values.

Photo Cropping

Confirm pixel dimensions will produce the correct physical size at print resolution.

Device Mockups

Verify screen element sizes when preparing design mockups against physical specs.

Packaging Design

Convert digital canvas dimensions to physical cm measurements for packaging dielines.

Frequently Asked Questions — PX to CM Converter

How many cm is 1 px?
At 96 DPI (web standard), 1 pixel equals 0.0265 cm. At 300 DPI (professional print), 1 pixel equals 0.0085 cm. The physical size of a pixel always depends on the DPI — use the px to cm converter above to calculate any value instantly.
What DPI should I use for web design?
Use 96 DPI for all screen and web-based projects. This is the W3C CSS standard and the default resolution assumed by all modern web browsers when interpreting CSS lengths.
What DPI should I use for professional print?
Use 300 DPI for professional print output — business cards, posters, brochures, and all commercial print work. For newspaper print, 150 DPI is the typical industry standard.
How do I convert A4 paper size from cm to px?
A4 paper is 21 × 29.7 cm. At 300 DPI (print) that is 2480 × 3508 px. At 96 DPI (screen) it is 794 × 1123 px. Use the CM → PX reverse converter above with 21 and 29.7 at your target DPI.
What is the px to cm formula?
The formula is: cm = (px ÷ DPI) × 2.54. Divide your pixel value by the DPI to get inches, then multiply by 2.54 to convert to centimeters. Example: 300px at 96 DPI = (300 ÷ 96) × 2.54 = 7.94 cm.
Is px to cm conversion the same in Photoshop and CSS?
Not always. In CSS, 1cm = 96px ÷ 2.54 per the W3C standard, regardless of actual screen. In Photoshop, conversion depends on your document's resolution setting — always check the DPI of your document before converting px to cm for print.

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