Convert between px and rem units with custom base font size
Typically 16px (browser default)
Quick reference (base: 16px)
4px
0.25r
8px
0.5r
12px
0.75r
14px
0.875r
16px
1r
18px
1.125r
20px
1.25r
24px
1.5r
32px
2r
40px
2.5r
48px
3r
56px
3.5r
64px
4r
80px
5r
96px
6r
128px
8r