Convert Ems (em) to Light Years (ly)

Enter Ems to convert to Light Years

Result

Quick reference for converting Ems to Light Years

Formula: ly = em ÷ 2.23536 × 10¹⁸
Quick rough maths: To get the Light Years, divide the Ems by 2.2 × 10¹⁸.
Ems (em) in 1 Light Year: There are 2.23536 × 10¹⁸ Ems in 1 Light Year
Light Years (ly) in 1 Em: There are 4.47354 × 10⁻¹⁹ Light Years in 1 Em

Conversion table: Ems (em) to Light Years (ly)

0em – 24em
0em	0ly
1em	4.473545 × 10⁻¹⁹ly
2em	8.947089 × 10⁻¹⁹ly
3em	1.342063 × 10⁻¹⁸ly
4em	1.789418 × 10⁻¹⁸ly
5em	2.236772 × 10⁻¹⁸ly
6em	2.684127 × 10⁻¹⁸ly
7em	3.131481 × 10⁻¹⁸ly
8em	3.578836 × 10⁻¹⁸ly
9em	4.02619 × 10⁻¹⁸ly
10em	4.473545 × 10⁻¹⁸ly
11em	4.920899 × 10⁻¹⁸ly
12em	5.368254 × 10⁻¹⁸ly
13em	5.815608 × 10⁻¹⁸ly
14em	6.262962 × 10⁻¹⁸ly
15em	6.710317 × 10⁻¹⁸ly
16em	7.157671 × 10⁻¹⁸ly
17em	7.605026 × 10⁻¹⁸ly
18em	8.05238 × 10⁻¹⁸ly
19em	8.499735 × 10⁻¹⁸ly
20em	8.947089 × 10⁻¹⁸ly
21em	9.394444 × 10⁻¹⁸ly
22em	9.841798 × 10⁻¹⁸ly
23em	1.028915 × 10⁻¹⁷ly
24em	1.073651 × 10⁻¹⁷ly

25em – 49em
25em	1.118386 × 10⁻¹⁷ly
26em	1.163122 × 10⁻¹⁷ly
27em	1.207857 × 10⁻¹⁷ly
28em	1.252592 × 10⁻¹⁷ly
29em	1.297328 × 10⁻¹⁷ly
30em	1.342063 × 10⁻¹⁷ly
31em	1.386799 × 10⁻¹⁷ly
32em	1.431534 × 10⁻¹⁷ly
33em	1.47627 × 10⁻¹⁷ly
34em	1.521005 × 10⁻¹⁷ly
35em	1.565741 × 10⁻¹⁷ly
36em	1.610476 × 10⁻¹⁷ly
37em	1.655212 × 10⁻¹⁷ly
38em	1.699947 × 10⁻¹⁷ly
39em	1.744682 × 10⁻¹⁷ly
40em	1.789418 × 10⁻¹⁷ly
41em	1.834153 × 10⁻¹⁷ly
42em	1.878889 × 10⁻¹⁷ly
43em	1.923624 × 10⁻¹⁷ly
44em	1.96836 × 10⁻¹⁷ly
45em	2.013095 × 10⁻¹⁷ly
46em	2.057831 × 10⁻¹⁷ly
47em	2.102566 × 10⁻¹⁷ly
48em	2.147301 × 10⁻¹⁷ly
49em	2.192037 × 10⁻¹⁷ly

50em – 74em
50em	2.236772 × 10⁻¹⁷ly
51em	2.281508 × 10⁻¹⁷ly
52em	2.326243 × 10⁻¹⁷ly
53em	2.370979 × 10⁻¹⁷ly
54em	2.415714 × 10⁻¹⁷ly
55em	2.46045 × 10⁻¹⁷ly
56em	2.505185 × 10⁻¹⁷ly
57em	2.54992 × 10⁻¹⁷ly
58em	2.594656 × 10⁻¹⁷ly
59em	2.639391 × 10⁻¹⁷ly
60em	2.684127 × 10⁻¹⁷ly
61em	2.728862 × 10⁻¹⁷ly
62em	2.773598 × 10⁻¹⁷ly
63em	2.818333 × 10⁻¹⁷ly
64em	2.863069 × 10⁻¹⁷ly
65em	2.907804 × 10⁻¹⁷ly
66em	2.952539 × 10⁻¹⁷ly
67em	2.997275 × 10⁻¹⁷ly
68em	3.04201 × 10⁻¹⁷ly
69em	3.086746 × 10⁻¹⁷ly
70em	3.131481 × 10⁻¹⁷ly
71em	3.176217 × 10⁻¹⁷ly
72em	3.220952 × 10⁻¹⁷ly
73em	3.265688 × 10⁻¹⁷ly
74em	3.310423 × 10⁻¹⁷ly

75em – 99em
75em	3.355158 × 10⁻¹⁷ly
76em	3.399894 × 10⁻¹⁷ly
77em	3.444629 × 10⁻¹⁷ly
78em	3.489365 × 10⁻¹⁷ly
79em	3.5341 × 10⁻¹⁷ly
80em	3.578836 × 10⁻¹⁷ly
81em	3.623571 × 10⁻¹⁷ly
82em	3.668307 × 10⁻¹⁷ly
83em	3.713042 × 10⁻¹⁷ly
84em	3.757777 × 10⁻¹⁷ly
85em	3.802513 × 10⁻¹⁷ly
86em	3.847248 × 10⁻¹⁷ly
87em	3.891984 × 10⁻¹⁷ly
88em	3.936719 × 10⁻¹⁷ly
89em	3.981455 × 10⁻¹⁷ly
90em	4.02619 × 10⁻¹⁷ly
91em	4.070926 × 10⁻¹⁷ly
92em	4.115661 × 10⁻¹⁷ly
93em	4.160397 × 10⁻¹⁷ly
94em	4.205132 × 10⁻¹⁷ly
95em	4.249867 × 10⁻¹⁷ly
96em	4.294603 × 10⁻¹⁷ly
97em	4.339338 × 10⁻¹⁷ly
98em	4.384074 × 10⁻¹⁷ly
99em	4.428809 × 10⁻¹⁷ly

Unit information

/ɛm/

Symbol: em
Unit system: Typography

What is the Em?

The em is a unit of length in the field of typography and uses the symbol em.

It is a "relative" unit and equals the currently specified point size. For example, 1 em in a 24-point typeface is equal to 24 points. This allows a typographer to specify text size relative to a base figure.

In metal type, the em was equal to the line height of the metal body. This meant the physical size of the letter could not exceed the em. In digital type, the em is a grid of arbitrary resolution so can be scaled to any point size for screen or print.

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.