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24em to px

24em = 384px

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

How it is calculated

One em is 16px, so:

24em × 16 = 384px

Reversing it, 384px × 0.0625 returns 24em.

24em at other font sizes

em is measured against the element's own font size, inherited from its parent unless it sets one, so the answer above holds only while that is 16 px. Nested elements each compound on their parent, so this is the value for one level, not for the whole tree.

Font size24em equals
14 px336px
16 px (default)384px
18 px432px
20 px480px
24 px576px

Nearby values

empx
12em192px
14em224px
16em256px
18em288px
20em320px
24em384px
28em448px
32em512px
36em576px

Frequently asked questions

What is 24em in px?

384px at the default 16 px font size.

How is 24em converted to px?

Multiply by 16: 24 × 16 = 384. To go back, multiply 384 by 0.0625.

Is 384px always the answer?

No. em is relative to the element's own font size, inherited from its parent unless it sets one, so 24em is 384px only while that is 16 px. The table above gives the value at the sizes you are most likely to meet.

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