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

Quick Reference

1 Bohr = 1.191e-9 U

1 U = 839978835.18 Bohr

Bohr to U Conversion Formula

To convert Bohr to U, multiply by 1.191e-9.

U = Bohr × 1.191e-9

Bohr = U × 839978835.18

To convert U back to Bohr, divide by 1.191e-9 (or multiply by 839978835.18).

About These Units

About Bohr

The Bohr is a unit of distance commonly used in particle physics. It was named after the Danish physicist Niels Bohr (1885-1962), who explained the structure of atoms in a famous paper in 1913. The Bohr radius represents the mean distance between the proton and the electron in an unexcited hydrogen atom. It equals about 52.918 picometers (pm), or 52.918 x 10e-12 meter.

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.

Bohr to U Conversion Table

Bohr	U	U	Bohr
0.1	1.191e-10	0.1	83997883.52
0.5	5.953e-10	0.5	419989417.59
1	1.191e-9	1	839978835.18
2	2.381e-9	2	1679957670.36
5	5.953e-9	5	4199894175.89
10	1.191e-8	10	8399788351.79
20	2.381e-8	20	16799576703.58
25	2.976e-8	25	20999470879.47
50	5.953e-8	50	41998941758.95
100	1.191e-7	100	83997883517.90
250	2.976e-7	250	209994708794.74
500	5.953e-7	500	419989417589.48
1000	1.191e-6	1000	839978835178.96

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