Convert mile (US survey) to light year
Please provide values below to convert mile (US survey) [mi (survey)] to light year [ly], or Convert light year to mile (US survey).
How to Convert Mile (Us Survey) to Light Year
1 mi (survey) = 1.70108135239532e-13 ly
Example: convert 15 mi (survey) to ly:
15 mi (survey) = 15 × 1.70108135239532e-13 ly = 2.55162202859298e-12 ly
Mile (Us Survey) to Light Year Conversion Table
| mile (US survey) | light year |
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Mile (Us Survey)
The U.S. survey mile is a unit of length equal to 5,280 U.S. survey feet.
History/Origin
The U.S. survey foot was defined such that 1 meter is exactly 39.37 inches. This made the U.S. survey mile slightly longer than the international mile. The use of the survey foot was officially phased out in 2022.
Current Use
The U.S. survey mile was used for land surveying in the United States.
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.