CSS Unit Converter
Reference Sizes
Conversion Table
Type a value in any row — every other unit recomputes from the field you edited.
| Unit | Value | Copy |
|---|---|---|
| Pixels px | ||
| Root em rem | ||
| Relative em em | ||
| Percent % | ||
| Points pt | ||
| Picas pc | ||
| Inches in | ||
| Centimeters cm | ||
| Millimeters mm | ||
| Viewport width vw | ||
| Viewport height vh |
px → rem Quick Reference
follows your root and context font-size above| px | rem | em |
|---|---|---|
| 4 | 0.25 | 0.25 |
| 8 | 0.5 | 0.5 |
| 12 | 0.75 | 0.75 |
| 14 | 0.875 | 0.875 |
| 16 | 1 | 1 |
| 18 | 1.125 | 1.125 |
| 20 | 1.25 | 1.25 |
| 24 | 1.5 | 1.5 |
| 28 | 1.75 | 1.75 |
| 32 | 2 | 2 |
| 40 | 2.5 | 2.5 |
| 48 | 3 | 3 |
| 56 | 3.5 | 3.5 |
| 64 | 4 | 4 |
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