Lightyears to Kilometers Converter (ly to km)
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Convert Kilometers to Lightyears (km to ly) ▶

Conversion Table

lightyears to kilometers
lykm
1 ly 9460530000000 km
2 ly 18921060000000 km
3 ly 28381590000000 km
4 ly 37842120000000 km
5 ly 47302650000000 km
6 ly 56763180000000 km
7 ly 66223710000000 km
8 ly 75684240000000 km
9 ly 85144770000000 km
10 ly 94605300000000 km
11 ly 1.0406583E+14 km
12 ly 1.1352636E+14 km
13 ly 1.2298689E+14 km
14 ly 1.3244742E+14 km
15 ly 1.4190795E+14 km
16 ly 1.5136848E+14 km
17 ly 1.6082901E+14 km
18 ly 1.7028954E+14 km
19 ly 1.7975007E+14 km
20 ly 1.892106E+14 km

How to convert

1 lightyear (ly) = 9.46053E+12 kilometer (km). Lightyear (ly) is a unit of Length used in Metric system. Kilometer (km) is a unit of Length used in Metric system.

Lightyear: A Unit of Length

The lightyear is a large unit of length used to express astronomical distances and is equivalent to about 9.46 trillion kilometers (9.46 × 10^12 km), or 5.88 trillion miles (5.88 × 10^12 mi). As defined by the International Astronomical Union (IAU), a lightyear is the distance that light travels in a vacuum in one Julian year (365.25 days). The lightyear is most often used when expressing distances to stars and other distances on a galactic scale, especially in non-specialist contexts and popular science publications.

In this article, we will explore the definition, history, usage and conversion of the lightyear as a unit of length.

Example Conversions of Lightyear to Other Units

The lightyear can be converted to other units of length by using different factors and formulas. Here are some examples of conversion for different types of units:

  • To convert a lightyear to kilometers, multiply by 9.46 × 10^12:

1 ly × 9.46 × 10^12 = 9.46 × 10^12 km

  • To convert a lightyear to miles, multiply by 5.88 × 10^12:

1 ly × 5.88 × 10^12 = 5.88 × 10^12 mi

  • To convert a lightyear to AU, multiply by 63,241:

1 ly × 63,241 = 63,241 AU

  • To convert a lightyear to parsecs, divide by 3.26:

1 ly / 3.26 = 0.31 pc

  • To convert a kilometer to lightyears, divide by 9.46 × 10^12:

1 km / 9.46 × 10^12 = 1.06 × 10^-13 ly

  • To convert a mile to lightyears, divide by 5.88 × 10^12:

1 mi / 5.88 × 10^12 = 1.70 × 10^-13 ly

  • To convert an AU to lightyears, divide by 63,241:

1 AU / 63,241 = 1.58 × 10^-5 ly

  • To convert a parsec to lightyears, multiply by 3.26:

1 pc × 3.26 = 3.26 ly

Kilometer - Unit of Distance / Length

Unit Symbol / Abbreviation: km

Where the unit used in the World:

The kilometer is used as a unit used to measure distances or lengths.
It's a standard measure for travelled distances, geographical distances and maps in most countries excluding the USA and the United Kingdom where mile is still used for this purpose.
between geographical locations on land, and in most countries is the official unit for this purpose. Primary exceptions are the United Kingdom, Liberia, Myanmar and the United States of America, where the mile remains as standard as a part of imperial system.

Definition of the Unit:

The kilometer (kilometre in UK spelling) is a unit of length/distance in the metric system (SI Unit system) equivalent to one thousand meters.

1 km is equivalent to 0.62137 miles.

Equivalents in other units and scales:

  • 1 km = 1000000 millimeters (mm)
  • 1 km = 100 000 centimeters (cm)
  • 1 km = 10000 decimeters (dm)
  • 1 km = 1000 meters (m)
  • 1 km = 3280.84 feet (ft)
  • 1 megameter = 1000 km
  • 1 gigameter = 1000000 km
  • 1 mile = 1.609 km
  • 1 yard = 0.000914 km
  • 1 foot = 0.000305 km
  • 1 inch = 0.0000254 km
  • Units of length in the metric SI system are based on multiples or fractions of a meter.
  • There are measurements of length/distance in the metric SI system greater than a kilometer that can be expressed in terms of kilometres.

1 km is equivalent to 0.621371 mi.

The kilometer is unit of length in the metric SI system and is equivalent to one thousand metres.



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