Free CSS Font Size Calculator (px to em, rem)
Calculate font sizes in em, rem, percentage, and vw from pixel values. Instantly convert between CSS font size units.
100% client-side - your data never leaves your browser.
Type Scale (ratio: 1.250)
| Step | px | rem | Preview |
|---|---|---|---|
| +5 | 48.83 | 3.052 | Aa |
| +4 | 39.06 | 2.441 | Aa |
| +3 | 31.25 | 1.953 | Aa |
| +2 | 25 | 1.563 | Aa |
| +1 | 20 | 1.250 | Aa |
| base | 16 | 1.000 | Base text |
| -1 | 12.8 | 0.800 | Aa |
| -2 | 10.24 | 0.640 | Aa |
Want automated scanning?
SCOUTb2 runs 25+ accessibility, performance, SEO, and security checks on any page automatically.
Install SCOUTb2 Free