Use this free online calculator to convert U to Line instantly. This all length conversions conversion tool provides accurate results for all your measurement needs.

Quick Reference

1 U = 20.9997 Line

1 Line = 0.047620 U

U to Line Conversion Formula

To convert U to Line, multiply by 20.9997.

Line = U × 20.9997

U = Line × 0.047620

To convert Line back to U, divide by 20.9997 (or multiply by 0.047620).

About These Units

About U

The U is a unit of distance used to measure the height of the standard racks in which audio, video, or computer components are mounted. 1U is equal to 1.75 inches (44.45 millimeters), so that, for example, a 2U component is 3.5 inches high, and a 22U rack houses a stack of components 38.5 inches high.

About Line

The line is a traditional unit of distance equal to 1/12 inch (about 2.1167 millimeters). For measuring the thickness of buttons, there is also a smaller line equal to 1/40 inch (0.635 millimeter). The line is called the ligne in French, the linea in Spanish, the linie in German, and the liniya in Russian.

U to Line Conversion Table

U	Line	Line	U
0.1	2.1000	0.1	4.762e-3
0.5	10.4998	0.5	0.023810
1	20.9997	1	0.047620
2	41.9993	2	0.095240
5	104.9983	5	0.238099
10	209.9967	10	0.476198
20	419.9934	20	0.952396
25	524.9917	25	1.1905
50	1049.98	50	2.3810
100	2099.97	100	4.7620
250	5249.92	250	11.9049
500	10499.83	500	23.8099
1000	20999.67	1000	47.6198

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