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A rack unit (abbreviated U or RU) is a unit of measure defined as 1.75 inches (44.45 mm). It is most frequently used as a measurement of the overall height of 19-inch and ..more definition+
The Bohr radius (a0 or rBohr) is a physical constant, approximately equal to the most probable distance between the proton and electron in a hydrogen atom in its ground state. It is named after Niels Bohr, due to its role in the Bohr model of an atom. Its value is 5.2917721067×10^−11 m.
In relation to the base unit of [length] => (meters), 1 Rack Unit (ru) is equal to 0.04445 meters, while 1 Bohr Radius (Bohr) = 5.29177E-11 meters.| 1 Rack Unit | to common length units |
|---|---|
| 1 ru | = 0.04445 meters (m) |
| 1 ru | = 4.445E-5 kilometers (km) |
| 1 ru | = 4.445 centimeters (cm) |
| 1 ru | = 0.14583333333333 feet (ft) |
| 1 ru | = 1.75 inches (in) |
| 1 ru | = 0.048611111111111 yards (yd) |
| 1 ru | = 2.7619949494949E-5 miles (mi) |
| 1 ru | = 4.6982348588944E-18 light years (ly) |
| 1 ru | = 168.00002116536 pixels (PX) |
| 1 ru | = 2.778125E+33 planck length (pl) |
| Rack Unit | to Bohr Radius (table conversion) |
|---|---|
| 1 ru | = 839983597.1707 Bohr |
| 2 ru | = 1679967194.3414 Bohr |
| 3 ru | = 2519950791.5121 Bohr |
| 4 ru | = 3359934388.6828 Bohr |
| 5 ru | = 4199917985.8535 Bohr |
| 6 ru | = 5039901583.0242 Bohr |
| 7 ru | = 5879885180.1949 Bohr |
| 8 ru | = 6719868777.3656 Bohr |
| 9 ru | = 7559852374.5363 Bohr |
| 10 ru | = 8399835971.707 Bohr |
| 20 ru | = 16799671943.414 Bohr |
| 30 ru | = 25199507915.121 Bohr |
| 40 ru | = 33599343886.828 Bohr |
| 50 ru | = 41999179858.535 Bohr |
| 60 ru | = 50399015830.242 Bohr |
| 70 ru | = 58798851801.949 Bohr |
| 80 ru | = 67198687773.656 Bohr |
| 90 ru | = 75598523745.363 Bohr |
| 100 ru | = 83998359717.07 Bohr |
| 200 ru | = 167996719434.14 Bohr |
| 300 ru | = 251995079151.21 Bohr |
| 400 ru | = 335993438868.28 Bohr |
| 500 ru | = 419991798585.35 Bohr |
| 600 ru | = 503990158302.42 Bohr |
| 700 ru | = 587988518019.49 Bohr |
| 800 ru | = 671986877736.56 Bohr |
| 900 ru | = 755985237453.63 Bohr |
| 1000 ru | = 839983597170.7 Bohr |
| 2000 ru | = 1679967194341.4 Bohr |
| 4000 ru | = 3359934388682.8 Bohr |
| 5000 ru | = 4199917985853.5 Bohr |
| 7500 ru | = 6299876978780.3 Bohr |
| 10000 ru | = 8399835971707 Bohr |
| 25000 ru | = 20999589929268 Bohr |
| 50000 ru | = 41999179858535 Bohr |
| 100000 ru | = 83998359717070 Bohr |
| 1000000 ru | = 8.399835971707E+14 Bohr |
| 1000000000 ru | = 8.399835971707E+17 Bohr |