Quick converter
Type into any field — every unit in this category updates instantly.
Root font-size 16px
Common rem → px values
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| rem | px |
|---|---|
| 4rem | 64px |
| 6rem | 96px |
| 8rem | 128px |
| 10rem | 160px |
| 12rem | 192px |
| 14rem | 224px |
| 16rem | 256px |
| 18rem | 288px |
| 20rem | 320px |
| 24rem | 384px |
| 28rem | 448px |
| 32rem | 512px |
| 36rem | 576px |
| 40rem | 640px |
| 44rem | 704px |
| 48rem | 768px |
| 56rem | 896px |
| 64rem | 1024px |
| 72rem | 1152px |
| 80rem | 1280px |
| 96rem | 1536px |
| 112rem | 1792px |
| 128rem | 2048px |
| 144rem | 2304px |
| 160rem | 2560px |
| 192rem | 3072px |
| 224rem | 3584px |
| 256rem | 4096px |
Convert 18rem to other units
Formula
rem = px ÷ root-font-size and px = rem × root-font-size. Browsers default the root font-size to 16px, so 1rem normally equals 16px unless the page (or the user's browser settings) changes it.
em works the same way, but relative to the parent element's font-size rather than the root — the numbers only match rem when nothing in the ancestor chain has resized the font.
pt is a print unit: 1pt = 1.333px, based on the fixed 96px-per-inch / 72pt-per-inch relationship browsers use.
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