# Lightyears to Nautical Miles Converter

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Convert Nautical Miles to Lightyears (nmi to ly) ▶

## Conversion Table

 lightyears to nautical miles ly nmi 1 ly 5108280000000 nmi 2 ly 10216560000000 nmi 3 ly 15324840000000 nmi 4 ly 20433120000000 nmi 5 ly 25541400000000 nmi 6 ly 30649680000000 nmi 7 ly 35757960000000 nmi 8 ly 40866240000000 nmi 9 ly 45974520000000 nmi 10 ly 51082800000000 nmi 11 ly 56191080000000 nmi 12 ly 61299360000000 nmi 13 ly 66407640000000 nmi 14 ly 71515920000000 nmi 15 ly 76624200000000 nmi 16 ly 81732480000000 nmi 17 ly 86840760000000 nmi 18 ly 91949040000000 nmi 19 ly 97057320000000 nmi 20 ly 1.021656E+14 nmi

## How to convert

1 lightyear (ly) = 5.10828E+12 nautical mile (nmi). Lightyear (ly) is a unit of Length used in Metric system. Nautical Mile (nmi) is a unit of Length used in Standard 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

## Nautical Mile: A Unit of Length

A nautical mile is a unit of length that is used in air, marine, and space navigation, and for the definition of territorial waters. It is based on the Earth’s longitude and latitude coordinates, and is equal to one minute of arc along a meridian. In this article, we will explore the definition, history, uses, and conversions of the nautical mile.

## How to Convert Nautical Mile

The nautical mile can be converted to other units of length using simple multiplication or division by a conversion factor. Here are some common conversion factors:

Unit
Conversion Factor
Metre 1,852
Foot 6,076
Statute mile 1.151
Kilometre 1.852
Yard 2,025

For example, to convert 10 nautical miles to kilometres, we multiply by 1.852:

10 NM × 1.852 = 18.52 km

To convert 50 kilometres to nautical miles, we divide by 1.852:

50 km ÷ 1.852 = 27 NM

The international nautical mile was defined as exactly 1,852 meters in 1929.

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