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Pixel to mm Calculator

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Pixel to mm Calculator

Enter any 2 values to calculate the required value

Input any two values (size in pixels, resolution, or size in mm) into the calculator to compute the missing value.

The Pixel to mm Calculator is a versatile tool that helps convert between pixels and physical dimensions like millimeters, centimeters, or inches, based on the resolution (DPI or DPCM). It’s essential for graphic designers, photographers, and anyone working on digital prints or screen layouts.

Formula

Size in mm=PixelsResolution (DPI)×25.4\text{Size in mm} = \frac{\text{Pixels}}{\text{Resolution (DPI)}} \times 25.4

Where:

  • 25.4 converts inches to millimeters.
Variable Description
Pixels\text{Pixels} The size in pixels (dimensionless).
DPI\text{DPI} Dots per inch, or resolution of the image.
mm\text{mm} The physical size in millimeters.

Solved Examples

Example 1:
Convert 500 pixels at 300 DPI to millimeters.

Step Calculation Result
Formula mm=PixelsDPI×25.4\text{mm} = \frac{\text{Pixels}}{\text{DPI}} \times
Substitution mm=500300×25.4\text{mm} = \frac{500}{300} \ 42.33mm42.33 \, 

Example 2:
Find the resolution (DPI) needed to display 1000 pixels over 100 mm.

Step Calculation Result
Formula DPI=Pixelsmm×25.4\text{DPI} = \frac{\text{Pixels}}{\text{mm}}
Substitution DPI=1000100×25.4\text{DPI} = \frac{1000}{100}  254DPI254 \, \te

Applications

  • Graphic Design: Converting pixels to print dimensions for high-quality prints.
  • Photography: Determining required resolution for specific print sizes.
  • Digital Layouts: Ensuring proper scaling between digital and physical formats.

FAQs

1. How is DPI related to physical size?
DPI (dots per inch) determines how many pixels fit into one inch. Higher DPI means higher resolution and smaller pixel size.

2. Can I use centimeters or inches instead of millimeters?
Yes, the calculator supports conversions to and from millimeters, centimeters, and inches.

3. Why is 25.4 used in the formula?
The value 25.4 converts inches to millimeters, as 1 inch equals 25.4 mm.

Convert pixels to millimeters, centimeters, or inches using this easy-to-use Pixel to mm Calculator. Perfect for graphic design and digital print preparation!

 

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