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16rem to px

16rem = 256px

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

How it is calculated

One rem is 16px, so:

16rem × 16 = 256px

Reversing it, 256px × 0.0625 returns 16rem.

16rem 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 size16rem equals
14 px224px
16 px (default)256px
18 px288px
20 px320px
24 px384px

Nearby values

rempx
8rem128px
10rem160px
12rem192px
14rem224px
16rem256px
18rem288px
20rem320px
24rem384px

Frequently asked questions

What is 16rem in px?

256px at the default 16 px root font size.

How is 16rem converted to px?

Multiply by 16: 16 × 16 = 256. To go back, multiply 256 by 0.0625.

Is 256px always the answer?

No. rem is relative to the root element, so 16rem is 256px only while that is 16 px. The table above gives the value at the sizes you are most likely to meet.

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