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A light-year (abbreviation: ly), sometimes referred to incorrectly as a light year, is a unit of length used informally to express astronomical distances. It is approxi ..more definition+
An em is a unit in the field of typography, equal to the currently specified point size. For example, one em in a 16-point typeface is 16 points. Therefore, this unit is the sa ..more definition+
In relation to the base unit of [length] => (meters), 1 Light Years (ly) is equal to 9461000000000000 meters, while 1 Ems (EM) = 0.0042175176 meters.| 121000 Light Years | to common length units |
|---|---|
| 121000 ly | = 1.144781E+21 meters (m) |
| 121000 ly | = 1.144781E+18 kilometers (km) |
| 121000 ly | = 1.144781E+23 centimeters (cm) |
| 121000 ly | = 3.755843175853E+21 feet (ft) |
| 121000 ly | = 4.5070118110236E+22 inches (in) |
| 121000 ly | = 1.2519477252843E+21 yards (yd) |
| 121000 ly | = 7.1133393482065E+17 miles (mi) |
| 121000 ly | = 121000 light years (ly) |
| 121000 ly | = 4.3267318836828E+24 pixels (PX) |
| 121000 ly | = 7.15488125E+55 planck length (pl) |