Convert px to rem Online
Enter a pixel value and get the rem equivalent based on your root font size. With the default 16px base, 16px is 1rem and 24px is 1.5rem. Change the base if your project uses a different root size.
CSS Units Converter
Convert between px, rem, em, vw, vh, %, pt, cm, mm, in and other CSS units
All Conversions
Conversion Formulas
Quick Reference (root: 16px, parent: 16px)
| px | rem | em | pt | vw | vh | Note |
|---|---|---|---|---|---|---|
| 1 | 0.0625 | 0.0625 | 0.75 | 0.052083 | 0.092593 | Hairline |
| 4 | 0.25 | 0.25 | 3 | 0.208333 | 0.37037 | 0.25rem |
| 8 | 0.5 | 0.5 | 6 | 0.416667 | 0.740741 | 0.5rem |
| 10 | 0.625 | 0.625 | 7.5 | 0.520833 | 0.925926 | Small text |
| 12 | 0.75 | 0.75 | 9 | 0.625 | 1.111111 | 0.75rem |
| 14 | 0.875 | 0.875 | 10.5 | 0.729167 | 1.296296 | Body small |
| 16 | 1 | 1 | 12 | 0.833333 | 1.481481 | 1rem (base) |
| 18 | 1.125 | 1.125 | 13.5 | 0.9375 | 1.666667 | 1.125rem |
| 20 | 1.25 | 1.25 | 15 | 1.041667 | 1.851852 | 1.25rem |
| 24 | 1.5 | 1.5 | 18 | 1.25 | 2.222222 | 1.5rem / heading |
| 32 | 2 | 2 | 24 | 1.666667 | 2.962963 | 2rem |
| 48 | 3 | 3 | 36 | 2.5 | 4.444444 | 3rem |
| 64 | 4 | 4 | 48 | 3.333333 | 5.925926 | 4rem |
| 96 | 6 | 6 | 72 | 5 | 8.888889 | 6rem / 1in |
Quick Start
- 1Enter your pixel value in the px field
- 2Set the base font size, 16px by default
- 3Read the rem result for typography, spacing, or media queries
- 4Copy the rem value into your CSS
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