18px to rem

18px equals 1.125rem when the root font size is 16px (the browser default).

Exact result1.125 rem
Rounded1.1 rem
Conversion factor1 pixel = 0.0625 rem
Reverse1 rem = 16 pixels

pixel to rem conversion table

pixelsrem
8 pixels0.5 rem
10 pixels0.625 rem
12 pixels0.75 rem
14 pixels0.875 rem
16 pixels1 rem
18 pixels1.125 rem
20 pixels1.25 rem
22 pixels1.375 rem
24 pixels1.5 rem
26 pixels1.625 rem
28 pixels1.75 rem

How to convert 18 pixels to rem

Divide the pixel value by the root font size: 18 ÷ 16 = 1.125rem. If your html element uses a different font size, divide by that number instead. To go back, multiply rem by 16.

Good to know

Using rem instead of px lets text and spacing grow when a visitor raises the browser’s default font size, which helps accessibility. Many teams keep 1px borders in px and use rem for font sizes, padding and margins.

Open the PX to REM Converter

Popular calculations

Frequently asked questions

How many rem is 18 pixels?

18 pixels is 1.125 rem.

What is the formula for pixel to rem?

rem = px ÷ root font size. With the default 16px: 1rem = 16px, 0.5rem = 8px, 1.5rem = 24px.

Can I convert other values?

Yes. Enter any pixel value and your own root font size in the converter on this page, or paste a whole stylesheet to convert every px value at once.