Convert light year to Planck length
Please provide values below to convert light year [ly] to Planck length [l_P], or Convert Planck length to light year.
1 ly = 5.8535e+50 l_P. To convert light year to Planck length, multiply the value by 5.8535e+50; to go the other way, divide by it (1 l_P = 1.7084e-51 ly). Both units measure length and appear in everyday as well as technical calculations, so switching between them quickly is often useful.
Quick Reference
- 1 ly = 5.8535e+50 l_P
- 1 l_P = 1.7084e-51 ly
- 10 ly = 5.8535e+51 l_P
- 100 ly = 5.8535e+52 l_P
How to Convert Light Year to Planck Length
1 ly = 5.85348875801158e+50 l_P
Example: convert 15 ly to l_P:
15 ly = 15 × 5.85348875801158e+50 l_P = 8.78023313701736e+51 l_P
Light Year to Planck Length Conversion Table
| light year | Planck length |
|---|---|
| 1 ly | 5.8535e+50 l_P |
| 2 ly | 1.1707e+51 l_P |
| 3 ly | 1.7560e+51 l_P |
| 5 ly | 2.9267e+51 l_P |
| 10 ly | 5.8535e+51 l_P |
| 20 ly | 1.1707e+52 l_P |
| 50 ly | 2.9267e+52 l_P |
| 100 ly | 5.8535e+52 l_P |
| 500 ly | 2.9267e+53 l_P |
| 1000 ly | 5.8535e+53 l_P |
Light Year
A light-year is the distance that light travels in a vacuum in one Julian year.
History/Origin
The concept of the light-year as a unit of distance in astronomy emerged in the mid-19th century. The first recorded use of the term was in a German astronomical publication in 1851.
Current Use
The light-year is used to express distances to stars and other astronomical objects on a galactic and intergalactic scale, especially in popular science and non-specialist contexts.
Planck Length
The Planck length is the smallest possible unit of length in the universe, approximately 1.6 x 10⁻³⁵ meters.
History/Origin
The Planck length is derived from fundamental physical constants and is named after the physicist Max Planck. It is a fundamental unit in the system of Planck units.
Current Use
The Planck length is a theoretical concept used in quantum gravity and cosmology to describe phenomena at the smallest scales of the universe.
Frequently Asked Questions
What is 1 light year in Planck length?
1 light year (ly) = 5.8535e+50 Planck length (l_P).
How do you convert light year to Planck length?
Multiply the light year value by 5.8535e+50. For example, 25 ly × 5.8535e+50 = 1.4634e+52 l_P.
What is 10 light year in Planck length?
10 ly = 5.8535e+51 l_P.
Which unit is larger, the light year or the Planck length?
The light year is the larger unit: 1 ly = 5.8535e+50 l_P.