Convert Centimeters (cm) to Light Years (ly) | cm in ly

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Let's convert Centimeters (cm) to Light Years (ly)

This quick and easy calculator will convert Centimeters (cm) to Light Years (ly) and show formula, brief history on the units and quick maths for the conversion.

Enter Centimeters to convert to Light Years


Quick Reference for Converting Centimeters to Light Years

Formula
ly = cm / 9.46055E+17
Quick Rough Maths
To get the Light Years, divide the number of Centimeters by 946055 trillion
Centimeters (cm) in 1 Light Year
There are 9.46055E+17 Centimeters in 1 Light Year
Light Years (ly) in 1 Centimetre
There are 0 Light Years in 1 Centimetre

Unit Information

Centimetre
/ˈsɛntɪmiːtə/
Symbol: cm
Unit System: SI

What is the Centimetre?

The centimetre is a unit of length and is a multiple of the metre; an SI derived unit. It has the symbol cm.

A centimetre is equal to 0.01m. It is also ≈ 0.3937in.

Centimetres are used in maps to scale up conversions to real world measurements.

Light Year
/lʌɪt jɪə,jəː/
Symbol: ly
Unit System: Astronomical System of Units

What is the Light Year?

The light year is a unit of length in the Astronomical system of units. It uses the symbol ly.

Often confused with a unit of time as it contains the word "year", it is actually defined by the International Astronomical Union (IAU) as the amount of distance that light travels in a vacuum in one Julian year (365.25 days).

Using the speed of light (299,792,458 m/s or 'c') and the Julian year (as apposed to the Gregorian year which is 365.2425 days), we can equivalate 1 light year as 9,460,730,472,580,800 metres or ≈ 9.46 trillion kilometres.


Conversion Tables for Centimeters (cm) to Light Years (ly)