# Convert Light Years to Astronomical Units

How many astronomical units are in a light year? Easy light years to AU conversion.
1 Light Year =
63,241.077 Astronomical Units
(rounded to 8 digits)
A light year is the distance that light travels in one year. The year used by the International Astronomical Union is 365.25 days. Therefore a light year is exactly 9,460,730,472,580.8 kilometers.
An astronomical unit is the average distance between the Earth and the Sun. Estimates of this distance have varied over time. It is now defined as exactly 149,597,870.7 kilometers.
Light Years to Astronomical Units Conversion Table
(some results rounded)
light years AU
0.0001 6.3241
0.0002 12.648
0.0003 18.972
0.0004 25.296
0.0005 31.621
0.0006 37.945
0.0007 44.269
0.0008 50.593
0.0009 56.917
0.001 63.241
0.002 126.48
0.003 189.72
0.004 252.96
0.005 316.21
0.006 379.45
0.007 442.69
0.008 505.93
0.009 569.17
0.01 632.41
0.02 1,264.8
0.03 1,897.2
0.04 2,529.6
0.05 3,162.1
0.06 3,794.5
0.07 4,426.9
0.08 5,059.3
0.09 5,691.7
0.1 6,324.1
0.2 12,648
0.3 18,972
0.4 25,296
0.5 31,621
0.6 37,945
0.7 44,269
0.8 50,593
0.9 56,917
1 63,241
2 126,482
3 189,723
4 252,964
5 316,205
6 379,446
7 442,688
8 505,929
9 569,170
10 632,411
11 695,652
12 758,893
13 822,134
14 885,375
15 948,616
16 1,011,857
17 1,075,098
18 1,138,339
19 1,201,580
20 1,264,822
21 1,328,063
22 1,391,304
23 1,454,545
24 1,517,786
25 1,581,027
26 1,644,268
27 1,707,509
28 1,770,750
29 1,833,991
30 1,897,232
31 1,960,473
32 2,023,714
33 2,086,956
34 2,150,197
35 2,213,438
36 2,276,679
37 2,339,920
38 2,403,161
39 2,466,402
40 2,529,643
41 2,592,884
42 2,656,125
43 2,719,366
44 2,782,607
45 2,845,848
46 2,909,090
47 2,972,331
48 3,035,572
49 3,098,813
50 3,162,054
51 3,225,295
52 3,288,536
53 3,351,777
54 3,415,018
55 3,478,259
56 3,541,500
57 3,604,741
58 3,667,982
59 3,731,224
60 3,794,465
61 3,857,706
62 3,920,947
63 3,984,188
64 4,047,429
65 4,110,670
66 4,173,911
67 4,237,152
68 4,300,393
69 4,363,634
70 4,426,875
71 4,490,116
72 4,553,358
73 4,616,599
74 4,679,840
75 4,743,081
76 4,806,322
77 4,869,563
78 4,932,804
79 4,996,045
80 5,059,286
81 5,122,527
82 5,185,768
83 5,249,009
84 5,312,250
85 5,375,492
86 5,438,733
87 5,501,974
88 5,565,215
89 5,628,456
90 5,691,697
91 5,754,938
92 5,818,179
93 5,881,420
94 5,944,661
95 6,007,902
96 6,071,143
97 6,134,384
98 6,197,626
99 6,260,867
100 6,324,108
101 6,387,349
102 6,450,590
103 6,513,831
104 6,577,072
105 6,640,313
106 6,703,554
light years AU
107 6,766,795
108 6,830,036
109 6,893,277
110 6,956,518
111 7,019,760
112 7,083,001
113 7,146,242
114 7,209,483
115 7,272,724
116 7,335,965
117 7,399,206
118 7,462,447
119 7,525,688
120 7,588,929
121 7,652,170
122 7,715,411
123 7,778,652
124 7,841,894
125 7,905,135
126 7,968,376
127 8,031,617
128 8,094,858
129 8,158,099
130 8,221,340
131 8,284,581
132 8,347,822
133 8,411,063
134 8,474,304
135 8,537,545
136 8,600,786
137 8,664,028
138 8,727,269
139 8,790,510
140 8,853,751
141 8,916,992
142 8,980,233
143 9,043,474
144 9,106,715
145 9,169,956
146 9,233,197
147 9,296,438
148 9,359,679
149 9,422,920
150 9,486,162
151 9,549,403
152 9,612,644
153 9,675,885
154 9,739,126
155 9,802,367
156 9,865,608
157 9,928,849
158 9,992,090
159 10,055,331
160 10,118,572
161 10,181,813
162 10,245,054
163 10,308,296
164 10,371,537
165 10,434,778
166 10,498,019
167 10,561,260
168 10,624,501
169 10,687,742
170 10,750,983
171 10,814,224
172 10,877,465
173 10,940,706
174 11,003,947
175 11,067,188
176 11,130,430
177 11,193,671
178 11,256,912
179 11,320,153
180 11,383,394
181 11,446,635
182 11,509,876
183 11,573,117
184 11,636,358
185 11,699,599
186 11,762,840
187 11,826,081
188 11,889,322
189 11,952,564
190 12,015,805
191 12,079,046
192 12,142,287
193 12,205,528
194 12,268,769
195 12,332,010
196 12,395,251
197 12,458,492
198 12,521,733
199 12,584,974
200 12,648,215
201 12,711,456
202 12,774,698
203 12,837,939
204 12,901,180
205 12,964,421
206 13,027,662
207 13,090,903
208 13,154,144
209 13,217,385
210 13,280,626
211 13,343,867
212 13,407,108
213 13,470,349
214 13,533,590
215 13,596,832
216 13,660,073
217 13,723,314
218 13,786,555
219 13,849,796
220 13,913,037
221 13,976,278
222 14,039,519
223 14,102,760
224 14,166,001
225 14,229,242
226 14,292,483
227 14,355,724
228 14,418,966
229 14,482,207
230 14,545,448
231 14,608,689
232 14,671,930
233 14,735,171
234 14,798,412
235 14,861,653
236 14,924,894
237 14,988,135
238 15,051,376
239 15,114,617
240 15,177,859
241 15,241,100
242 15,304,341
243 15,367,582
244 15,430,823
245 15,494,064
246 15,557,305
247 15,620,546
248 15,683,787
light years AU
249 15,747,028
250 15,810,269
251 15,873,510
252 15,936,751
253 15,999,993
254 16,063,234
255 16,126,475
256 16,189,716
257 16,252,957
258 16,316,198
259 16,379,439
260 16,442,680
261 16,505,921
262 16,569,162
263 16,632,403
264 16,695,644
265 16,758,885
266 16,822,127
267 16,885,368
268 16,948,609
269 17,011,850
270 17,075,091
271 17,138,332
272 17,201,573
273 17,264,814
274 17,328,055
275 17,391,296
276 17,454,537
277 17,517,778
278 17,581,019
279 17,644,261
280 17,707,502
281 17,770,743
282 17,833,984
283 17,897,225
284 17,960,466
285 18,023,707
286 18,086,948
287 18,150,189
288 18,213,430
289 18,276,671
290 18,339,912
291 18,403,153
292 18,466,395
293 18,529,636
294 18,592,877
295 18,656,118
296 18,719,359
297 18,782,600
298 18,845,841
299 18,909,082
300 18,972,323
305 19,288,529
310 19,604,734
315 19,920,939
320 20,237,145
325 20,553,350
330 20,869,555
335 21,185,761
340 21,501,966
345 21,818,172
350 22,134,377
355 22,450,582
360 22,766,788
365 23,082,993
370 23,399,199
375 23,715,404
380 24,031,609
385 24,347,815
390 24,664,020
395 24,980,225
400 25,296,431
405 25,612,636
410 25,928,842
415 26,245,047
420 26,561,252
425 26,877,458
430 27,193,663
435 27,509,869
440 27,826,074
445 28,142,279
450 28,458,485
455 28,774,690
460 29,090,895
465 29,407,101
470 29,723,306
475 30,039,512
480 30,355,717
485 30,671,922
490 30,988,128
495 31,304,333
500 31,620,539
505 31,936,744
510 32,252,949
515 32,569,155
520 32,885,360
525 33,201,565
530 33,517,771
535 33,833,976
540 34,150,182
545 34,466,387
550 34,782,592
555 35,098,798
560 35,415,003
565 35,731,209
570 36,047,414
575 36,363,619
580 36,679,825
585 36,996,030
590 37,312,235
595 37,628,441
600 37,944,646
605 38,260,852
610 38,577,057
615 38,893,262
620 39,209,468
625 39,525,673
630 39,841,879
635 40,158,084
640 40,474,289
645 40,790,495
650 41,106,700
655 41,422,905
660 41,739,111
665 42,055,316
670 42,371,522
675 42,687,727
680 43,003,932
685 43,320,138
690 43,636,343
695 43,952,549
700 44,268,754
705 44,584,959
710 44,901,165
715 45,217,370
720 45,533,576
725 45,849,781
730 46,165,986
735 46,482,192
740 46,798,397
745 47,114,602
750 47,430,808
light years AU
755 47,747,013
760 48,063,219
765 48,379,424
770 48,695,629
775 49,011,835
780 49,328,040
785 49,644,246
790 49,960,451
795 50,276,656
800 50,592,862
805 50,909,067
810 51,225,272
815 51,541,478
820 51,857,683
825 52,173,889
830 52,490,094
835 52,806,299
840 53,122,505
845 53,438,710
850 53,754,916
855 54,071,121
860 54,387,326
865 54,703,532
870 55,019,737
875 55,335,942
880 55,652,148
885 55,968,353
890 56,284,559
895 56,600,764
900 56,916,969
905 57,233,175
910 57,549,380
915 57,865,586
920 58,181,791
925 58,497,996
930 58,814,202
935 59,130,407
940 59,446,612
945 59,762,818
950 60,079,023
955 60,395,229
960 60,711,434
965 61,027,639
970 61,343,845
975 61,660,050
980 61,976,256
985 62,292,461
990 62,608,666
995 62,924,872
1,000 63,241,077
1,100 69,565,185
1,200 75,889,293
1,300 82,213,400
1,400 88,537,508
1,500 94,861,616
1,600 101,185,723
1,700 107,509,831
1,800 113,833,939
1,900 120,158,046
2,000 126,482,154
2,100 132,806,262
2,200 139,130,370
2,300 145,454,477
2,400 151,778,585
2,500 158,102,693
2,600 164,426,800
2,700 170,750,908
2,800 177,075,016
2,900 183,399,124
3,000 189,723,231
3,100 196,047,339
3,200 202,371,447
3,300 208,695,554
3,400 215,019,662
3,500 221,343,770
3,600 227,667,878
3,700 233,991,985
3,800 240,316,093
3,900 246,640,201
4,000 252,964,308
4,100 259,288,416
4,200 265,612,524
4,300 271,936,631
4,400 278,260,739
4,500 284,584,847
4,600 290,908,955
4,700 297,233,062
4,800 303,557,170
4,900 309,881,278
5,000 316,205,385
5,100 322,529,493
5,200 328,853,601
5,300 335,177,709
5,400 341,501,816
5,500 347,825,924
5,600 354,150,032
5,700 360,474,139
5,800 366,798,247
5,900 373,122,355
6,000 379,446,463
6,100 385,770,570
6,200 392,094,678
6,300 398,418,786
6,400 404,742,893
6,500 411,067,001
6,600 417,391,109
6,700 423,715,216
6,800 430,039,324
6,900 436,363,432
7,000 442,687,540
7,100 449,011,647
7,200 455,335,755
7,300 461,659,863
7,400 467,983,970
7,500 474,308,078
7,600 480,632,186
7,700 486,956,294
7,800 493,280,401
7,900 499,604,509
8,000 505,928,617
8,100 512,252,724
8,200 518,576,832
8,300 524,900,940
8,400 531,225,048
8,500 537,549,155
8,600 543,873,263
8,700 550,197,371
8,800 556,521,478
8,900 562,845,586
9,000 569,169,694
9,100 575,493,801
9,200 581,817,909
9,300 588,142,017
9,400 594,466,125
9,500 600,790,232
9,600 607,114,340
9,700 613,438,448
9,800 619,762,555
9,900 626,086,663
10,000 632,410,771