Convert Planck length to light year
Please provide values below to convert Planck length [l_P] to light year [ly], or Convert light year to Planck length.
1 l_P = 1.7084e-51 ly. To convert Planck length to light year, multiply the value by 1.7084e-51; to go the other way, divide by it (1 ly = 5.8535e+50 l_P). Both units measure length and appear in everyday as well as technical calculations, so switching between them quickly is often useful.
Quick Reference
- 1 l_P = 1.7084e-51 ly
- 1 ly = 5.8535e+50 l_P
- 10 l_P = 1.7084e-50 ly
- 100 l_P = 1.7084e-49 ly
How to Convert Planck Length to Light Year
1 l_P = 1.7083828829966e-51 ly
Example: convert 15 l_P to ly:
15 l_P = 15 × 1.7083828829966e-51 ly = 2.5625743244949e-50 ly
Planck Length to Light Year Conversion Table
| Planck length | light year |
|---|---|
| 1 l_P | 1.7084e-51 ly |
| 2 l_P | 3.4168e-51 ly |
| 3 l_P | 5.1251e-51 ly |
| 5 l_P | 8.5419e-51 ly |
| 10 l_P | 1.7084e-50 ly |
| 20 l_P | 3.4168e-50 ly |
| 50 l_P | 8.5419e-50 ly |
| 100 l_P | 1.7084e-49 ly |
| 500 l_P | 8.5419e-49 ly |
| 1000 l_P | 1.7084e-48 ly |
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.
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.
Frequently Asked Questions
What is 1 Planck length in light year?
1 Planck length (l_P) = 1.7084e-51 light year (ly).
How do you convert Planck length to light year?
Multiply the Planck length value by 1.7084e-51. For example, 25 l_P × 1.7084e-51 = 4.2710e-50 ly.
What is 10 Planck length in light year?
10 l_P = 1.7084e-50 ly.
Which unit is larger, the Planck length or the light year?
The light year is the larger unit: 1 l_P equals only 1.7084e-51 ly.