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Light Years to KM Converter

Convert light years to kilometers with accurate formulas, examples and conversion tables.

Length conversion

Calculator

Results update instantly. Use Calculate to confirm the current conversion.

Decimals and negative values are supported.

Result

9,460,730,472,580.8 km

1 ly ≈ 9,460,730,472,580.8 km

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Open a focused converter for a commonly searched length conversion.

Centimeters to Inches1 cm = 0.39370079 inInches to Centimeters1 in = 2.54 cmMeters to Feet1 m = 3.2808399 ftFeet to Meters1 ft = 0.3048 mKilometers to Miles1 km = 0.62137119 miMiles to Kilometers1 mi = 1.609344 kmMillimeters to Inches1 mm = 0.03937008 inInches to Millimeters1 in = 25.4 mmYards to Meters1 yd = 0.9144 mMeters to Yards1 m = 1.0936133 yd

Conversion table

Common light years to kilometers values, generated from the selected units.

light years (ly)kilometers (km)
1 light year9,460,730,472,580.8 kilometers
5 light years47,303,652,362,904 kilometers
10 light years94,607,304,725,808 kilometers
20 light years189,214,609,451,616 kilometers
50 light years473,036,523,629,040 kilometers
100 light years946,073,047,258,080 kilometers

Conversion Formula

Multiply the value in light years by 9460730472580.8 to get kilometers.

Formulakm = ly × 9460730472580.8

Example

Convert 1 light year to kilometers:

1 × 9460730472580.8= 9,460,730,472,580.8 km

Unit information

Concise reference information for the selected source and target units.

Light year (ly)

Scientific
1 ly = 9.460730472581e15 m
Definition
A light year is the distance light travels in vacuum during one Julian year.
Usage
Used to describe distances between stars and other objects beyond the solar system.

Kilometer (km)

Metric
1 km = 1,000 m
Definition
One kilometer equals exactly 1,000 meters.
Usage
Used for road distances, geography, travel, and outdoor sports.
Light Years to KM tableReference chart and common light year-to-kilometer values.Kilometers to Light yearsConvert kilometers to light years.Light years to MillimetersConvert light years to millimeters.Light years to CentimetersConvert light years to centimeters.Light years to MetersConvert light years to meters.Light years to InchesConvert light years to inches.Light years to FeetConvert light years to feet.Light years to YardsConvert light years to yards.

Frequently asked questions

How many kilometers are in 1 light year?

1 light year equals 9,460,730,472,580.8 kilometers.

How do you convert light years to kilometers?

Multiply the value in light years by 9460730472580.8 to get kilometers. The formula is km = ly × 9460730472580.8.

What is 10 light years in kilometers?

10 light years is approximately 94,607,304,725,808 kilometers.