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

Quick Reference

1 U = 0.012153 Twain

1 Twain = 82.2859 U

U to Twain Conversion Formula

To convert U to Twain, multiply by 0.012153.

Twain = U × 0.012153

U = Twain × 82.2859

To convert Twain back to U, divide by 0.012153 (or multiply by 82.2859).

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 Twain

The twain is an old word for the number two, derived from the Anglo-Saxon twegen. The American author Samuel Clemens (1835-1910), who had been a riverboat pilot on the Mississippi in his youth, took his literary name from a traditional riverboat phrase "mark twain", meaning "exactly two" fathoms of water. This was the minimum depth needed for the boats to operate safely without running aground.

U to Twain Conversion Table

U	Twain	Twain	U
0.1	1.215e-3	0.1	8.2286
0.5	6.076e-3	0.5	41.1429
1	0.012153	1	82.2859
2	0.024306	2	164.5718
5	0.060764	5	411.4294
10	0.121528	10	822.8588
20	0.243055	20	1645.72
25	0.303819	25	2057.15
50	0.607638	50	4114.29
100	1.2153	100	8228.59
250	3.0382	250	20571.47
500	6.0764	500	41142.94
1000	12.1528	1000	82285.88

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