Pixels per millimeter to Pixels per centimeter Converter

ConversionEdited by Hemant Kumar and Anjita Rai, founders · How we checkUpdated Free · No sign-up

Quick answer: To convert pixels per millimeter to pixels per centimeter, multiply by 10. For example, 10 px/mm is 100 px/cm. One pixel per millimeter equals 10 px/cm.

Use the Pixels per millimeter to Pixels per centimeter Converter

Pixels per millimeter to Pixels per centimeter formula and what each symbol means

px/cm = px/mm × 10

Symbols used in the formula
SymbolMeaning
px/mmPixel per millimeter
px/cmPixel per centimeter

Pixels per millimeter to Pixels per centimeter examples

1 px/mm

1 px/mm × 10 = 10 px/cm.

10 px/mm

10 px/mm × 10 = 100 px/cm.

100 px/mm

100 px/mm × 10 = 1,000 px/cm.

Pixels per millimeter compared with Pixels per centimeter

One px/mm is 10 times as large as one px/cm, so your number gets bigger when you convert pixels per millimeter to pixels per centimeter and smaller when you convert back. If the answer is not larger than what you typed, you divided instead of multiplying.

About pixels per millimeter and pixels per centimeter

Pixel per millimeter (px/mm): Pixels per millimetre, 25.4 ppi. Pixel per centimeter (px/cm): Pixels per centimetre, 2.54 ppi.

How to calculate Pixels per millimeter to Pixels per centimeter step by step

  1. Enter the value in px/mm (the starting unit).
  2. Multiply by 10, because 1 px/mm = 10 px/cm.
  3. The product is the value in px/cm. To go back, divide by 10 or multiply by 0.1.

Popular digital image resolution conversions

How to read your Pixels per millimeter to Pixels per centimeter result

One pixel per centimetre equals 2.54 ppi, and one pixel per millimetre equals 25.4 ppi.

PIXELS PER MILLIMETERPIXELS PER CENTIMETER
110
220
550
10100
20200
50500
1001,000
1,00010,000

Pixels per centimeter to Pixels per millimeter: quick table

PIXELS PER CENTIMETERPIXELS PER MILLIMETER
10.1
50.5
101
252.5
505
10010
25025
50050

Common mistakes when calculating Pixels per millimeter to Pixels per centimeter

  • Confusing ppi (pixels per inch) with dpi (printer dots per inch).
  • Dividing when you should multiply: from px/mm to px/cm multiply by 10; from px/cm to px/mm divide by 10.

Pixels per millimeter to Pixels per centimeter FAQ

How many px/cm are in 1 px/mm?

1 px/mm equals 10 px/cm.

How many px/mm are in 1 px/cm?

1 px/cm equals 0.1 px/mm.

Is 1 px/mm = 10 px/cm an exact conversion?

The factor is shown rounded to 7 significant figures (10). The calculator above uses more digits.

What is a pixel per centimeter (px/cm)?

Pixels per centimetre, 2.54 ppi.

How can I estimate pixels per millimeter to pixels per centimeter in my head?

One px/mm is 10 times as large as one px/cm, so your number gets bigger when you convert pixels per millimeter to pixels per centimeter and smaller when you convert back. If the answer is not larger than what you typed, you divided instead of multiplying.

What is 25 px/mm in pixels per centimeter?

25 px/mm = 250 px/cm (since 25 × 10).

What is 80 px/mm in pixels per centimeter?

80 px/mm = 800 px/cm (since 80 × 10).

What is 500 px/mm in pixels per centimeter?

500 px/mm = 5,000 px/cm (since 500 × 10).

How many decimals should I keep when converting px/mm to px/cm?

Match the precision of your original measurement. For example, 100 px/cm rounds to 100 px/cm at 3 significant figures; keep more digits only for engineering or scientific work.

Method, review and disclaimer

Edited by: Hemant Kumar and Anjita Rai, founders of ToolsVault (SEO and content professional, not a licensed adviser). Method: this tool runs in your browser using the formula shown on this page; the numbers you enter are not sent to our servers. Sources: NIST SP 811, Appendix B.8: conversion factors, BIPM: the International System of Units (SI)