About the Units
yoctometer (ym)
The smallest theoretically conceived length unit.
light year (l. y.)
The distance light travels in one year, used for astronomical measurements.
Common Conversions
- 1 ym = 1.057e-40 l. y.
- 3.4028237e38 ym = 1 l. y.
Convert from yoctometers to light years
Conversion Information
To convert from yoctometers to light years, multiply by 1.057e-40
1 ym = 1.057e-40 l. y.