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 23-inch rack frames, as well as the height ..more definition+
In relation to the base unit of [length] => (meters), 1 Rack Unit (ru) is equal to 0.04445 meters, while 1 Femtometers (fm) = 1.0E-15 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 Femtometers (table conversion) |
|---|---|
| 1 ru | = 44450000000000 fm |
| 2 ru | = 88900000000000 fm |
| 3 ru | = 1.3335E+14 fm |
| 4 ru | = 1.778E+14 fm |
| 5 ru | = 2.2225E+14 fm |
| 6 ru | = 2.667E+14 fm |
| 7 ru | = 3.1115E+14 fm |
| 8 ru | = 3.556E+14 fm |
| 9 ru | = 4.0005E+14 fm |
| 10 ru | = 4.445E+14 fm |
| 20 ru | = 8.89E+14 fm |
| 30 ru | = 1.3335E+15 fm |
| 40 ru | = 1.778E+15 fm |
| 50 ru | = 2.2225E+15 fm |
| 60 ru | = 2.667E+15 fm |
| 70 ru | = 3.1115E+15 fm |
| 80 ru | = 3.556E+15 fm |
| 90 ru | = 4.0005E+15 fm |
| 100 ru | = 4.445E+15 fm |
| 200 ru | = 8.89E+15 fm |
| 300 ru | = 1.3335E+16 fm |
| 400 ru | = 1.778E+16 fm |
| 500 ru | = 2.2225E+16 fm |
| 600 ru | = 2.667E+16 fm |
| 700 ru | = 3.1115E+16 fm |
| 800 ru | = 3.556E+16 fm |
| 900 ru | = 4.0005E+16 fm |
| 1000 ru | = 4.445E+16 fm |
| 2000 ru | = 8.89E+16 fm |
| 4000 ru | = 1.778E+17 fm |
| 5000 ru | = 2.2225E+17 fm |
| 7500 ru | = 3.33375E+17 fm |
| 10000 ru | = 4.445E+17 fm |
| 25000 ru | = 1.11125E+18 fm |
| 50000 ru | = 2.2225E+18 fm |
| 100000 ru | = 4.445E+18 fm |
| 1000000 ru | = 4.445E+19 fm |
| 1000000000 ru | = 4.445E+22 fm |