REM to CM Converter

Use this free online rem to cm converter tool to convert root em units to centimeters. Centimeters are an absolute unit used in international print design. This tool enables conversion between web typography and metric print measurements.

To convert rem to centimeters, multiply the rem value by the root font-size to get pixels, then multiply by 2.54 and divide by 96. The default root font-size is 16px. This conversion is valuable for international print projects.

Conversion Formula

cm = (rem × root font-size × 2.54) ÷ 96

For example, to convert 6rem to cm with 16px root font-size, calculate (6 × 16 × 2.54) ÷ 96 = 2.54cm. Similarly, 3rem approximately equals 1.27cm because (3 × 16 × 2.54) ÷ 96 ≈ 1.27.

REM to CM Converter Conversion Table (Root: 16px)

REMCM
0.0625rem0.0265cm
0.25rem0.1058cm
0.5rem0.2117cm
0.75rem0.3175cm
1rem0.4233cm
1.25rem0.5292cm
1.5rem0.635cm
2rem0.8467cm
2.5rem1.058cm
3rem1.27cm
4rem1.693cm
6rem2.54cm
8rem3.387cm
10rem4.233cm
11rem4.657cm
12rem5.08cm
13rem5.503cm
14rem5.927cm
16rem6.773cm
20rem8.467cm
30rem12.7cm
36rem15.24cm
48rem20.32cm
50rem21.17cm
60rem25.4cm
62rem26.25cm
64rem27.09cm
70rem29.63cm
75rem31.75cm
80rem33.87cm
90rem38.1cm
100rem42.33cm
120rem50.8cm

What is REM?

REM (Root EM) is a relative CSS unit based on the root element's font size, typically 16px by default in most browsers. Unlike EM units which cascade based on parent elements, REM provides consistent sizing throughout the document. This makes REM ideal for creating scalable, accessible designs that respect user font-size preferences.

What is CM?

Centimeters (cm) are an absolute CSS unit representing physical centimeters, commonly used in print design and international contexts. In web contexts, 1cm equals approximately 37.8 pixels. While uncommon for screen design, centimeters are valuable for print stylesheets where physical dimensions matter.

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