4px in rem · 16px root
0.25 rem
rem = px ÷ root font size — shown here at the browser default root font size of 16px.
4px at every root font size
| Root font size | 4px equals | CSS |
|---|---|---|
| 10px | 0.4rem | font-size: 0.4rem; |
| 12px | 0.33333rem | font-size: 0.3333rem; |
| 14px | 0.28571rem | font-size: 0.2857rem; |
| 16px default | 0.25rem | font-size: 0.25rem; |
| 18px | 0.22222rem | font-size: 0.2222rem; |
| 20px | 0.2rem | font-size: 0.2rem; |
Converter
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Nearby values
Questions
What is 4px in rem?
4px = 0.25rem at the browser default root font size of 16px. rem = px ÷ root font size.
What is 4px in rem at a different root size?
At 10px root: 0.4rem. At 12px root: 0.3333rem. At 14px root: 0.2857rem. At 16px root: 0.25rem. At 18px root: 0.2222rem. At 20px root: 0.2rem.
How is 4px calculated?
rem = px ÷ root font size. Here: 4 ÷ 16 = 0.25.
All px values
8px10px12px14px16px18px20px22px24px28px32px36px40px44px48px56px64px72px80px88px96px100px112px128px144px160px192px256px
Computed from the CSS Values and Units specification. See the full px to rem table.