The following is a chart that shows you the conversion of pixels to rems, keywords, points, and percents. It is generally based upon a screen size of 1028x768 px and a default font size of 16px.

Note, if you have set your default font size larger or smaller than normal, the rems, etc., will display relative to your default font size.

The conversion valuess may differ depending upon browser, font family, and operating system

Pixels (px)	Rems (rem)	Keyword	Points (pt)	Percent (%)
1px	0.0625rem		0.75pt	6.25%
2px	0.125rem		1.5pt	12.5%
3px	0.1875rem		2.25pt	18.75%
4px	0.25rem		3pt	25%
5px	0.3125rem		3.75pt	31.25%
6px	0.375rem		4.5pt	37.5%
7px	0.4375rem		5.25pt	43.75%
8px	0.5rem		6pt	50%
9px	0.5625rem		6.75pt	56.25%
10px	0.625rem	x-small	7.5pt	62.5%
11px	0.6875rem		8.25pt	68.75%
12px	0.75rem		9pt	75%
13px	0.8125rem	small	9.75pt	81.25%
14px	0.875rem		10.5pt	87.5%
15px	0.9375rem		11.25pt	93.75%
16px	1rem	medium	12pt	100%
17px	1.0625rem		12.75pt	106.25%
18px	1.125rem	large	13.5pt	112.5%
19px	1.1875rem		14.25pt	118.75%
20px	1.25rem		15pt	125%
21px	1.3125rem		15.75pt	131.25%
22px	1.375rem		16.5pt	137.5%
23px	1.4375rem		17.25pt	143.75%
24px	1.5rem		18pt	150%
25px	1.5625rem		18.75pt	156.25%
26px	1.625rem		19.5pt	162.5%
27px	1.6875rem		20.25pt	168.75%
28px	1.75rem		21pt	175%
29px	1.8125rem		21.75pt	181.25%
30px	1.875rem		22.5pt	187.5%
31px	1.9375rem		23.25pt	193.75%
32px	2rem	xx-large	24pt	200%
33px	2.0625rem		24.75pt	206.25%
130px	8.125rem		97.5pt	812.5%
164px	10.25rem		123pt	1025%
166px	10.375rem		124.5pt	1037.5%
252px	15.75rem		189pt	1575%
342px	21.375rem		256.5pt	2137.5%
464px	29rem		348pt	2900%