What is a PX to CM Converter?
A PX to CM Converter changes a digital size in pixels into a physical size in centimeters. The result depends on DPI because the same pixel value represents different physical sizes at different screen or print densities.
The Spexo PX to CM Converter uses your pixel value and DPI to calculate centimeters instantly. Copy the result or download a text report. No data is sent to any server.
How to convert px to cm
Enter the pixel value and DPI. The centimeter result appears automatically.
- Set the DPI value.
The default is 96 DPI, the standard for web and screen calculations. Adjust it based on your screen, design export or print requirement. - Enter the pixel value.
Type the value in the Pixels (px) field. For example enter 800 if your image or layout width is 800 pixels. - View the centimeter result.
The converter returns the centimeter value with 4 decimal places for precise measurements. - Copy or download the result.
Click Copy Result to copy the centimeter value to your clipboard. Click Download .txt to save the pixel input, centimeter result and DPI value as a text file.
PX to CM formula
The formula to convert pixels to centimeters requires a DPI value.
cm = (px ÷ DPI) × 2.54
At 96 DPI, 800 pixels equals 21.1667 cm. At 300 DPI, the same 800 pixels equals only 6.7733 cm because the pixels are packed more tightly into each inch.
Why DPI matters
DPI stands for dots per inch. The value describes how many pixels fit inside one physical inch of a screen or printed output.
Common DPI values and their contexts:
| DPI | Common use |
|---|---|
| 72 DPI | Legacy screen and older web standard |
| 96 DPI | Standard web and Windows screen resolution |
| 150 DPI | Medium-quality print output |
| 192 DPI | Retina-class screen displays (2× standard) |
| 220 DPI | High-density smartphone and tablet screens |
| 300 DPI | Professional print and offset printing standard |
Using the wrong DPI produces an inaccurate physical measurement. A 1920-pixel width at 96 DPI is 50.80 cm. The same 1920 pixels at 300 DPI is only 16.26 cm. For MDN’s explanation of how CSS pixels relate to physical pixels see the MDN Web Docs glossary.
PX to CM reference table
The table below shows the centimeter equivalent for common pixel values at three widely used DPI settings. Use the calculator above for any pixel or DPI combination not listed here.
| Pixels | At 96 DPI (web) | At 150 DPI | At 300 DPI (print) |
|---|---|---|---|
| 10 px | 0.2646 cm | 0.1693 cm | 0.0847 cm |
| 50 px | 1.3229 cm | 0.8467 cm | 0.4233 cm |
| 100 px | 2.6458 cm | 1.6933 cm | 0.8467 cm |
| 200 px | 5.2917 cm | 3.3867 cm | 1.6933 cm |
| 300 px | 7.9375 cm | 5.0800 cm | 2.5400 cm |
| 400 px | 10.5833 cm | 6.7733 cm | 3.3867 cm |
| 500 px | 13.2292 cm | 8.4667 cm | 4.2333 cm |
| 600 px | 15.8750 cm | 10.1600 cm | 5.0800 cm |
| 800 px | 21.1667 cm | 13.5467 cm | 6.7733 cm |
| 1000 px | 26.4583 cm | 16.9333 cm | 8.4667 cm |
| 1200 px | 31.7500 cm | 20.3200 cm | 10.1600 cm |
| 1920 px | 50.8000 cm | 32.5120 cm | 16.2560 cm |
All values are calculated using cm = (px ÷ DPI) × 2.54 and rounded to 4 decimal places.
Where to use the PX to CM Converter
Use the converter when a digital measurement in pixels needs to match a physical size in centimeters.
Web and UI design
Use px to cm calculations when your design or layout needs to match exact physical dimensions in a printed or physical output.
Print preparation
Convert layout widths or image dimensions from pixels to centimeters before handing off to a printer. Use the image resizer to set the exact pixel dimensions first, then convert here for the physical print specification.
Image and banner sizing
Calculate the physical size of banners and promotional graphics when you know the pixel dimensions and the display DPI.
Product and packaging mockups
Check that digital mockups and product renders match real world dimensions in centimeters before production.
Reports and project notes
Include accurate physical measurements in client reports and design briefs.
Manual calculation vs using this converter
Calculating px to cm manually requires remembering the formula and using the correct DPI each time. A wrong DPI produces a wrong result and the error may not be obvious until a file reaches the printer.
The converter applies the formula automatically from your inputs and returns a 4-decimal result. Copy or download for project notes and client handoffs.
Use PX to CM values with Spexo Addons for Elementor
Converting pixels to centimeters feeds directly into image planning and layout decisions when you build with Spexo Addons for Elementor.
Image and banner planning
Use converted centimeter values when preparing hero banners and background images that need to match physical print or display dimensions.
WooCommerce product visuals
Convert product image pixel dimensions to centimeters for accurate product listing descriptions and packaging specifications. Before uploading product images, convert them to WebP using the image to WebP converter to reduce file weight without losing quality.
Design handoff
Include centimeter measurements in design briefs shared with developers, print vendors or content teams. If the project involves a new WordPress page, browse the Elementor template kits to find a ready made layout that fits the design spec.
FAQs about PX to CM Converter
centimeters = (pixels / DPI) × 2.54. The value 2.54 is used because 1 inch = 2.54 cm.96, which is commonly used for web and screen-based calculations.96 for common screen work or 300 for many print workflows.4 decimal places for better accuracy.spexo-px-to-cm-converter.txt.
