Question 1

How are rem conversions calculated?

Accepted Answer

rem conversions assume a 16px root font size by default (the browser default). You can change this to match your project's root font size.

Question 2

What is the difference between em and rem?

Accepted Answer

em is relative to the parent element's font size; rem is relative to the root element's font size. rem is more predictable for layouts.

Question 3

Can I use this for viewport units?

Accepted Answer

Yes. Enter a viewport width or height to calculate vw and vh equivalents for any pixel value.

CSS Unit Converter

What is CSS Unit Converter?