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Pixel per inch to Pixel per centimeter Converter

1 pixel per inch is about 0.3937007874 pixels per centimeter. Convert pixels per inch (ppi) to pixels per centimeter (px/cm) below: type a value and the result updates as you type.

ppi to px/cm calculator

Dot or comma decimals and scientific notation (1e-3) work.

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Result

Pixel per inch to Pixel per centimeter conversion

1 ppi ≈ 0.3937007874 px/cmone pixel per inch in pixels per centimeter

1 px/cm = 2.54 ppione pixel per centimeter in pixels per inch

Pixel per inch (ppi): Number of pixels per inch. Used for screen sharpness and image print size; numerically the same scale as dpi.

Pixel per centimeter (px/cm): Number of pixels per centimeter.

Source:Pixel per inch: International yard and pound agreement (1959); Pixel per centimeter: SI Brochure, 9th edition (BIPM, 2019)

How to convert pixels per inch to pixels per centimeter

To convert pixels per inch to pixels per centimeter, divide the number of pixels per inch by 2.54.

Formula

px/cm = ppi ÷ 2.54

Examples

  • 5 ppi = 5 ÷ 2.54 ≈ 1.968503937 px/cm
  • 25 ppi = 25 ÷ 2.54 ≈ 9.842519685 px/cm
  • 100 ppi = 100 ÷ 2.54 ≈ 39.37007874 px/cm

Pixel per inch to Pixel per centimeter conversion table

Pixel per inch to Pixel per centimeter
Pixel per inch (ppi)Pixel per centimeter (px/cm)
0.1 ppi0.03937007874 px/cm
0.5 ppi0.1968503937 px/cm
1 ppi0.3937007874 px/cm
2 ppi0.7874015748 px/cm
3 ppi1.181102362 px/cm
5 ppi1.968503937 px/cm
10 ppi3.937007874 px/cm
20 ppi7.874015748 px/cm
25 ppi9.842519685 px/cm
50 ppi19.68503937 px/cm
100 ppi39.37007874 px/cm
250 ppi98.42519685 px/cm
500 ppi196.8503937 px/cm
1000 ppi393.7007874 px/cm

Values rounded to 10 significant digits where needed.

Frequently asked questions

How many pixels per centimeter are in one pixel per inch?
One pixel per inch is about 0.3937007874 pixels per centimeter.
How do I convert pixels per centimeter to pixels per inch?
To convert pixels per centimeter to pixels per inch, multiply the number of pixels per centimeter by 2.54. The formula is ppi = px/cm × 2.54.
Is this conversion exact?
Yes. Both units have exact definitions and the factor 2.54 is exact. Displayed results are only rounded when they have many decimal places.
Which is larger, a pixel per inch or a pixel per centimeter?
A pixel per centimeter is 2.54 times larger than a pixel per inch. In other words, a pixel per inch is about 0.3937007874 of a pixel per centimeter.