CSS units·98px
98px =
6.125rem
73.5pt

98 px in rem — 6.125 rem, 73.5 pt

98 px is 6.125 rem and 73.5 pt — 1.02083 inches, 25.929 mm, and 612.5% of the root font size.

rem (root 16 px)
6.125rem
pt (points)
73.5pt
pc (picas)
6.125pc
percent of root
612.5%
inches
1.02083in
millimetres
25.929mm
centimetres
2.5929cm

Why rem divides by 16

Because browsers default the root font size to 16 px, and rem is a multiple of it. When a reader enlarges text in their browser settings, only the parts written in rem grow — anything pinned in px stays put.

Nearby sizes

pxrem (root 16 px)pt (points)
95px5.9375rem71.25pt
96px6rem72pt
97px6.0625rem72.75pt
98px6.125rem73.5pt
99px6.1875rem74.25pt
100px6.25rem75pt
101px6.3125rem75.75pt

On screen, pt and inches are still pixels

CSS fixes one inch at 96 px and one point at 1/72 inch. So 16 px is exactly 12 pt — but hold a ruler to the screen and that "inch" will not measure an inch.

Sizes you meet most

Body text at 16, small text at 14, spacing at 8, 24 and 32 — the values that keep coming back.

How to read this

  • rem = px ÷ 16, because browsers default the root font size to 16 px.
  • pt = px × 0.75, since CSS fixes an inch at 96 px and a point at 1/72 inch.
  • One pc is 12 pt, and one inch is both 96 px and 72 pt.
  • Use rem for text and spacing; keep px for hairlines such as borders.

Frequently asked questions

Q. How many rem is 98 px?

6.125 rem — that is 98 divided by 16.

Q. How many points is 98 px?

73.5 pt. A point is 1/72 inch and an inch is 96 px, so you multiply by 0.75.

Q. What length is that?

1.02083 inches, or 25.929 mm — though a ruler on the screen will not agree.

Q. And as a percentage?

612.5% of the root font size.