Toolman

56px to rem

56px = 3.5rem

At the browser default root font size of 16 px. Change it and this number changes — see below.

How it is calculated

One px is 0.0625rem, so:

56px × 0.0625 = 3.5rem

Reversing it, 3.5rem × 16 returns 56px.

56px at other root font sizes

rem is measured against the root element, so the answer above holds only while that is 16 px. A visitor who has raised their browser's default — the accessibility setting rem exists to respect — is reading your page at one of the larger rows.

Root font size56px equals
14 px4rem
16 px (default)3.5rem
18 px3.1111rem
20 px2.8rem
24 px2.3333rem

Nearby values

pxrem
28px1.75rem
32px2rem
36px2.25rem
40px2.5rem
48px3rem
56px3.5rem
64px4rem
72px4.5rem
80px5rem

Frequently asked questions

What is 56px in rem?

3.5rem at the default 16 px root font size.

How is 56px converted to rem?

Multiply by 0.0625: 56 × 0.0625 = 3.5. To go back, multiply 3.5 by 16.

Is 3.5rem always the answer?

No. rem is relative to the root element, so 56px is 3.5rem only while that is 16 px. The table above gives the value at the sizes you are most likely to meet.

The full PX to REM converter → · All CSS unit converters