Convert Planck length to kilometer
Please provide values below to convert Planck length [l_P] to kilometer [km], or Convert kilometer to Planck length.
How to Convert Planck Length to Kilometer
1 l_P = 1.616255e-38 km
Example: convert 15 l_P to km:
15 l_P = 15 × 1.616255e-38 km = 2.4243825e-37 km
Planck Length to Kilometer Conversion Table
| Planck length | kilometer |
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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.
Kilometer
A kilometer is a unit of length in the metric system, equal to one thousand meters.
History/Origin
The term "kilometer" is derived from the Greek words "khilioi" (thousand) and "metron" (measure). The kilometer was first defined as part of the metric system in France in 1795.
Current Use
The kilometer is the most widely used unit of distance for road signs and travel distances in the world, with the notable exceptions of the United States and the United Kingdom.