CSS units·26px
26px =
1.625rem
19.5pt

26 px in rem — 1.625 rem, 19.5 pt

26 px is 1.625 rem and 19.5 pt — 0.27083 inches, 6.879 mm, and 162.5% of the root font size.

rem (root 16 px)
1.625rem
pt (points)
19.5pt
pc (picas)
1.625pc
percent of root
162.5%
inches
0.27083in
millimetres
6.879mm
centimetres
0.6879cm

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)
23px1.4375rem17.25pt
24px1.5rem18pt
25px1.5625rem18.75pt
26px1.625rem19.5pt
27px1.6875rem20.25pt
28px1.75rem21pt
29px1.8125rem21.75pt

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 26 px?

1.625 rem — that is 26 divided by 16.

Q. How many points is 26 px?

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

Q. What length is that?

0.27083 inches, or 6.879 mm — though a ruler on the screen will not agree.

Q. And as a percentage?

162.5% of the root font size.