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 Calibers (cal) is equal to 0.000254 meters, while 1 Rack Unit (ru) = 0.04445 meters.| 1 Calibers | to common length units |
|---|---|
| 1 cal | = 0.000254 meters (m) |
| 1 cal | = 2.54E-7 kilometers (km) |
| 1 cal | = 0.0254 centimeters (cm) |
| 1 cal | = 0.00083333333333333 feet (ft) |
| 1 cal | = 0.01 inches (in) |
| 1 cal | = 0.00027777777777778 yards (yd) |
| 1 cal | = 1.5782828282828E-7 miles (mi) |
| 1 cal | = 2.6847056336539E-20 light years (ly) |
| 1 cal | = 0.9600001209449 pixels (PX) |
| 1 cal | = 1.5875E+31 planck length (pl) |
| Calibers | to Rack Unit (table conversion) |
|---|---|
| 1 cal | = 0.0057142857142857 ru |
| 2 cal | = 0.011428571428571 ru |
| 3 cal | = 0.017142857142857 ru |
| 4 cal | = 0.022857142857143 ru |
| 5 cal | = 0.028571428571429 ru |
| 6 cal | = 0.034285714285714 ru |
| 7 cal | = 0.04 ru |
| 8 cal | = 0.045714285714286 ru |
| 9 cal | = 0.051428571428571 ru |
| 10 cal | = 0.057142857142857 ru |
| 20 cal | = 0.11428571428571 ru |
| 30 cal | = 0.17142857142857 ru |
| 40 cal | = 0.22857142857143 ru |
| 50 cal | = 0.28571428571429 ru |
| 60 cal | = 0.34285714285714 ru |
| 70 cal | = 0.4 ru |
| 80 cal | = 0.45714285714286 ru |
| 90 cal | = 0.51428571428571 ru |
| 100 cal | = 0.57142857142857 ru |
| 200 cal | = 1.1428571428571 ru |
| 300 cal | = 1.7142857142857 ru |
| 400 cal | = 2.2857142857143 ru |
| 500 cal | = 2.8571428571429 ru |
| 600 cal | = 3.4285714285714 ru |
| 700 cal | = 4 ru |
| 800 cal | = 4.5714285714286 ru |
| 900 cal | = 5.1428571428571 ru |
| 1000 cal | = 5.7142857142857 ru |
| 2000 cal | = 11.428571428571 ru |
| 4000 cal | = 22.857142857143 ru |
| 5000 cal | = 28.571428571429 ru |
| 7500 cal | = 42.857142857143 ru |
| 10000 cal | = 57.142857142857 ru |
| 25000 cal | = 142.85714285714 ru |
| 50000 cal | = 285.71428571429 ru |
| 100000 cal | = 571.42857142857 ru |
| 1000000 cal | = 5714.2857142857 ru |
| 1000000000 cal | = 5714285.7142857 ru |