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

Quick Reference

1 X Unit = 6.219e-19 Tu

1 Tu = 1607967968775104256.00 X Unit

X Unit to Tu Conversion Formula

To convert X Unit to Tu, multiply by 6.219e-19.

Tu = X Unit × 6.219e-19

X Unit = Tu × 1607967968775104256.00

To convert Tu back to X Unit, divide by 6.219e-19 (or multiply by 1607967968775104256.00).

About These Units

About X Unit

The X-unit (symbol xu) is a unit of length formerly used to measure the wavelength of X-rays and gamma rays. The X-unit is approximately 1.0021×10-13 metre. Defined by the Swedish physicist Karl Manne Georg Siegbahn (1886-1978) in 1925, the X-unit could not at that time be measured directly; the definition was instead made in terms of the spacing between planes of the calcite crystals used in the measuring apparatus.

About Tu

The tu is a traditional Chinese unit of distance equal to 250 li. Using the late nineteenth century definition of the li as 2115 feet, the tu was equal to 100.14 miles or 161.13 kilometers.

X Unit to Tu Conversion Table

X Unit	Tu	Tu	X Unit
0.1	6.219e-20	0.1	160796796877510400.00
0.5	3.110e-19	0.5	803983984387552128.00
1	6.219e-19	1	1607967968775104256.00
2	1.244e-18	2	3215935937550208512.00
5	3.110e-18	5	8039839843875520512.00
10	6.219e-18	10	16079679687751041024.00
20	1.244e-17	20	32159359375502082048.00
25	1.555e-17	25	40199199219377602560.00
50	3.110e-17	50	80398398438755205120.00
100	6.219e-17	100	160796796877510410240.00
250	1.555e-16	250	401991992193776025600.00
500	3.110e-16	500	803983984387552051200.00
1000	6.219e-16	1000	1.607967968775104e+21

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