Convert Planck length to astronomical unit
Please provide values below to convert Planck length [l_P] to astronomical unit [AU, UA], or Convert astronomical unit to Planck length.
1 l_P = 1.0804e-46 AU, UA. To convert Planck length to astronomical unit, multiply the value by 1.0804e-46; to go the other way, divide by it (1 AU, UA = 9.2558e+45 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 = 1.0804e-46 AU, UA
- 1 AU, UA = 9.2558e+45 l_P
- 10 l_P = 1.0804e-45 AU, UA
- 100 l_P = 1.0804e-44 AU, UA
How to Convert Planck Length to Astronomical Unit
1 l_P = 1.0803997359302e-46 AU, UA
Example: convert 15 l_P to AU, UA:
15 l_P = 15 × 1.0803997359302e-46 AU, UA = 1.6205996038953e-45 AU, UA
Planck Length to Astronomical Unit Conversion Table
| Planck length | astronomical unit |
|---|---|
| 1 l_P | 1.0804e-46 AU, UA |
| 2 l_P | 2.1608e-46 AU, UA |
| 3 l_P | 3.2412e-46 AU, UA |
| 5 l_P | 5.4020e-46 AU, UA |
| 10 l_P | 1.0804e-45 AU, UA |
| 20 l_P | 2.1608e-45 AU, UA |
| 50 l_P | 5.4020e-45 AU, UA |
| 100 l_P | 1.0804e-44 AU, UA |
| 500 l_P | 5.4020e-44 AU, UA |
| 1000 l_P | 1.0804e-43 AU, UA |
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.
Astronomical Unit
The astronomical unit is a unit of length, now defined as exactly 149,597,870,700 meters. It is approximately the average distance between the Earth and the Sun.
History/Origin
Historically, the astronomical unit was the mean Earth-Sun distance. In 2012, the International Astronomical Union (IAU) redefined it as a fixed constant.
Current Use
The astronomical unit is used primarily for measuring distances within the Solar System or around other stars.
Frequently Asked Questions
What is 1 Planck length in astronomical unit?
1 Planck length (l_P) = 1.0804e-46 astronomical unit (AU, UA).
How do you convert Planck length to astronomical unit?
Multiply the Planck length value by 1.0804e-46. For example, 25 l_P × 1.0804e-46 = 2.7010e-45 AU, UA.
What is 10 Planck length in astronomical unit?
10 l_P = 1.0804e-45 AU, UA.
Which unit is larger, the Planck length or the astronomical unit?
The astronomical unit is the larger unit: 1 l_P equals only 1.0804e-46 AU, UA.